<P> Regular cast members during season ten include Tom Welling, Erica Durance, Justin Hartley, Cassidy Freeman, and Allison Mack . John Schneider, Annette O'Toole, John Glover, Laura Vandervoort, and Callum Blue all returned sporadically throughout the season as Jonathan Kent, Martha Kent, Lionel Luthor, Kara, and Zod respectively, while Michael Rosenbaum (Lex Luthor) and Aaron Ashmore (Jimmy Olsen) returned for the series finale . </P> <P> The final season of the series, season ten continues the romance first developed between Clark Kent and Lois Lane in season nine, as well as the continuation of Clark's trials, and the forging of his superhero identity "Superman". The season premiere was seen by 2.98 million U.S. viewers . The series finale aired on May 13, 2011 . By the end of this season, Smallville had become the longest running science fiction television series in North America . </P> <Table> <Tr> <Th> No . overall </Th> <Th> No. in season </Th> <Th> Title </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> Prod . code </Th> <Th> U.S. viewers (millions) </Th> </Tr> <Tr> <Th> 196 </Th> <Td> </Td> <Td> "Lazarus" </Td> <Td> Kevin G. Fair </Td> <Td> Don Whitehead & Holly Henderson </Td> <Td> September 24, 2010 (2010 - 09 - 24) </Td> <Td> 3X6001 </Td> <Td> 2.98 </Td> </Tr> <Tr> <Td_colspan="8"> Following in the previous season finale, Lois removes the blue kryptonite dagger from Clark's body and hides as he heals . Chloe uses Doctor Fate's helmet to see her future and later swaps herself for Oliver's return from captivity . Tess wakes up healed in Cadmus Labs and discovers Lex Luthor clones . One clone escapes and forces Clark to choose between saving Lois or Metropolis; Clark pushes himself harder than before and saves everyone . Jor - El informs Clark that the darkness within himself will make him Earth's greatest threat, but a vision of his adoptive father Jonathan reminds Clark that he can still be the world's greatest hero . Meanwhile, Lois decides to take the reporting position in Africa and Tess unofficially adopts a child - aged clone of Lex . </Td> </Tr> <Tr> <Th> 197 </Th> <Td> </Td> <Td> "Shield" </Td> <Td> Glen Winter </Td> <Td> Jordan Hawley </Td> <Td> October 1, 2010 (2010 - 10 - 01) </Td> <Td> 3X6002 </Td> <Td> 2.38 </Td> </Tr> <Tr> <Td_colspan="8"> Lois takes a Daily Planet field reporter position in Egypt, so Clark sends Carter Hall to look after her . Subsequently, Carter and Lois discuss her running away from Clark in order to protect his secret . Oliver discovers that Chloe erased all records of herself before she disappeared, so he sets out to track her down . He discovers that she traded her life for his, and afterward faked her own death during the interrogation to escape . Back at the Daily Planet, Clark is assigned a new partner, Cat Grant, who hates all superheroes . Meanwhile, the Suicide Squad tags Clark, Oliver, and Carter with special trackers embedded in their skin . Clark decides not to go after Lois in Africa and instead begins wearing a new, red and blue version of his costume . </Td> </Tr> <Tr> <Th> 198 </Th> <Td> </Td> <Td> "Supergirl" </Td> <Td> Mairzee Almas </Td> <Td> Anne Cofell Saunders </Td> <Td> October 8, 2010 (2010 - 10 - 08) </Td> <Td> 3X6003 </Td> <Td> 2.30 </Td> </Tr> <Tr> <Td_colspan="8"> Radio personality Gordon Godfrey becomes possessed by the dark force Clark was warned about, and begins waging a crusade against all super-heroes . Kara comes back to Earth and tells Clark that Jor - El has sent her to take care of the evil that is coming, as the doubt in Clark's heart will allow it to possess him and use Clark's powers as the ultimate weapon . Lois returns from Africa and learns that Godfrey is planning to reveal Green Arrow's identity, and create doubt all over the world about the super-heroes so that he can manipulate them down a new path . Clark and Kara confront Godfrey, but Kara's Kryptonian bracelet exorcises the entity from Godfrey . Meanwhile, Oliver decides it is best everyone knows the truth, and reveals his identity as Green Arrow . </Td> </Tr> <Tr> <Th> 199 </Th> <Td> </Td> <Td> "Homecoming" </Td> <Td> Jeannot Szwarc </Td> <Td> Brian Peterson & Kelly Souders </Td> <Td> October 15, 2010 (2010 - 10 - 15) </Td> <Td> 3X6004 </Td> <Td> 3.19 </Td> </Tr> <Tr> <Td_colspan="8"> Clark and Lois attend their five - year high school reunion, which triggers memories of Lana Lang and Chloe . Brainiac 5 arrives from the 31st Century and takes Clark on a journey through his past, present, and future . Brainiac shows Clark that he still blames himself for his adoptive father's death years prior, he is abandoning his friends in the present, and that his fear of his own future is unfounded . After seeing that his future can be exactly how he hopes, Clark returns to the present to support Oliver in his venture to reveal his identity to the world . Later, Clark works to rebuild his relationship with Lois by giving her the attention she deserves, and finally admitting that he loves her . </Td> </Tr> <Tr> <Th> 200 </Th> <Td> 5 </Td> <Td> "Isis" </Td> <Td> James Marshall </Td> <Td> Genevieve Sparling </Td> <Td> October 22, 2010 (2010 - 10 - 22) </Td> <Td> 3X6005 </Td> <Td> 2.60 </Td> </Tr> <Tr> <Td_colspan="8"> Clark contemplates telling Lois his secret, while Lois also decides to reveal to Clark that she already knows he is The Blur . Before either can say anything, Lois unwittingly becomes possessed by the Egyptian Goddess Isis, who sets out to resurrect her long lost lover Osiris . Clark and Oliver look to Tess for help in trying to stop Isis, as Osiris's return will unleash Hell on Earth . Clark sets out to stop Isis, but instead almost becomes the vessel for Osiris before Oliver arrives and informs Clark on how to defeat the goddess . Using his heat vision on Isis' amulet, Clark successfully releases Lois from possession . Afterward, Clark and Oliver invite Tess to be part of their team and take over Watchtower . Later, Clark finally tells Lois that he is The Blur . </Td> </Tr> <Tr> <Th> 201 </Th> <Td> 6 </Td> <Td> "Harvest" </Td> <Td> Turi Meyer </Td> <Td> Al Septien & Turi Meyer </Td> <Td> October 29, 2010 (2010 - 10 - 29) </Td> <Td> 3X6007 </Td> <Td> 2.96 </Td> </Tr> <Tr> <Td_colspan="8"> Clark and Lois get a flat tire in the middle of nowhere, so Clark goes to the nearby town to fix the tire while Lois stays behind . Lois meets a young girl who takes her to a village where the water supply has been contaminated with blue kryptonite . Clark returns to find Lois missing and sets out to look for her . Lois discovers the villagers are planning to sacrifice her to bring continued good crops and health . She and Clark, who is powerless next to the villagers who emit blue kryptonite radiation, are captured . As a result of Lois's intervention, the villagers eventually move far enough from Clark that he super speeds himself and Lois back to Metropolis where they later make love for the first time . Meanwhile, Tess decides not to stop Alexander's accelerated growth after realizing that he has all of Lex's memories and his evil personality . </Td> </Tr> <Tr> <Th> 202 </Th> <Td> 7 </Td> <Td> "Ambush" </Td> <Td> Christopher Petry </Td> <Td> Don Whitehead & Holly Henderson </Td> <Td> November 5, 2010 (2010 - 11 - 05) </Td> <Td> 3X6006 </Td> <Td> 2.63 </Td> </Tr> <Tr> <Td_colspan="8"> General Sam Lane and Lucy Lane, Lois's father and sister, come into town to celebrate Thanksgiving with Lois and Clark . While visiting, the General reveals that he is a proponent of a new vigilante registration law, much to the dismay of Clark and Lois . Tess and Oliver discover that the team is being tracked by Rick Flag, who is reforming the Suicide Squad and has sent out an assassination order for the General . Flag launches a missile to kill the General, but it detonates next to Lois . "The Blur" saves Lois, which helps to change the General's opinion of some vigilantes . Regardless, the vigilante law passes and Flag begins ordering acts of terrorism on anti-vigilante headquarters . </Td> </Tr> <Tr> <Th> 203 </Th> <Td> 8 </Td> <Td> "Abandoned" </Td> <Td> Kevin G. Fair </Td> <Td> Drew Landis & Julia Swift </Td> <Td> November 12, 2010 (2010 - 11 - 12) </Td> <Td> 3X6008 </Td> <Td> 2.90 </Td> </Tr> <Tr> <Td_colspan="8"> Lois watches a video tape left by her mother, where Ella Lane (Teri Hatcher) tells Lois not to let the loss of a loved one keep her from living up to her full potential . Subsequently, Lois goes to the Fortress of Solitude and pleads with Jor - El to reconcile with Clark so that Clark can be the hero he needs to be . Meanwhile, Clark helps Tess uncover the truth about a dream Tess had about being in an orphanage . Tess eventually learns she is the illegitimate child of Lionel Luthor, who abandoned her at 5 years of age; her birth name is Lutessa Lena Luthor . Tess was left with Granny Goodness, who turns out to be one of a trinity of prophets for the dark lord Darkseid, the other two being Gordon Godfrey and club owner Desaad . </Td> </Tr> <Tr> <Th> 204 </Th> <Td> 9 </Td> <Td> "Patriot" </Td> <Td> Tom Welling </Td> <Td> John Chisholm </Td> <Td> November 19, 2010 (2010 - 11 - 19) </Td> <Td> 3X6009 </Td> <Td> 2.60 </Td> </Tr> <Tr> <Td_colspan="8"> Oliver registers for the new vigilante registration law, now being overseen by Col. Slade Wilson, in order to protect the rest of the team and find out what the government is planning . Oliver's suspicions are confirmed when the registration location is revealed to be a trap designed to locate and arrest superheroes . Clark teams up with Arthur Curry, now aware of his Atlantean heritage, and Arthur's wife Mera, to track down the superhero prisons the government has built . After the team rescues Oliver, Clark discovers that Slade's actions were influenced by Darkseid . Subsequently, Clark brings Lois onto the team and finally reveals the threat of Darkseid's arrival to everyone . </Td> </Tr> <Tr> <Th> 205 </Th> <Td> 10 </Td> <Td> "Luthor" </Td> <Td> Kelly Souders </Td> <Td> Bryan Q. Miller </Td> <Td> December 3, 2010 (2010 - 12 - 03) </Td> <Td> 3X6010 </Td> <Td> 2.76 </Td> </Tr> <Tr> <Td_colspan="8"> Clark learns that there is another Lex clone in existence, and that Tess has been keeping him alive behind everyone's back . Clark also discovers that Tess has a Kryptonian box, and when he activates it, it sends him to a parallel universe where the Luthors are his adoptive family and not the Kents . While on the alternate Earth, Clark learns that Tess is actually a Luthor, that his doppelganger goes by the alias Ultraman and murders anyone that gets in his way, including Lex Luthor . Clark acquires the Kryptonian box and manages to send himself back to his own reality, but unknowingly brings Lionel with him . </Td> </Tr> <Tr> <Th> 206 </Th> <Td> 11 </Td> <Td> "Icarus" </Td> <Td> Mairzee Almas </Td> <Td> Genevieve Sparling </Td> <Td> December 10, 2010 (2010 - 12 - 10) </Td> <Td> 3X6011 </Td> <Td> 2.55 </Td> </Tr> <Tr> <Td_colspan="8"> Clark proposes marriage to Lois and she accepts, but shortly after their engagement party Oliver is attacked by Metropolis citizens which sparks a manhunt for Queen and the rest of the heroes . Realizing General Slade is still alive, Clark orders all heroes underground until he can find a way to stop Slade . Subsequently, Slade brings in Emil, Tess, and Lois for questioning to find out where the Blur is . Carter Hall arrives and rescues Lois, but sacrifices his own life in the process . To stop Slade for good, Clark banishes him to the Phantom Zone . The heroes come together to bury Carter in his home country of Egypt, but are knocked unconscious by an unknown object that sprouts in Carter's burial chamber . </Td> </Tr> <Tr> <Th> 207 </Th> <Td> 12 </Td> <Td> "Collateral" </Td> <Td> Morgan Beggs </Td> <Td> Jordan Hawley </Td> <Td> February 4, 2011 (2011 - 02 - 04) </Td> <Td> 3X6012 </Td> <Td> 2.37 </Td> </Tr> <Tr> <Td_colspan="8"> After being knocked unconscious at Carter's funeral, Clark and his friends wake up without their powers and flashbacks of Chloe experimenting on them in a secret lab . Chloe informs Oliver that the government has put everyone in a coma and imprisoned their minds in a virtual reality . Clark and the team learn that the government is attempting to find a way to turn on and off the heroes' powers in the real world to ensure their cooperation with the Vigilante Registration Act . Chloe hacks into the program and one - by - one helps each hero back into reality . Chloe reveals that she blackmailed Flag's Suicide Squad into joining forces with her as a means of keeping them from harming innocent lives . </Td> </Tr> <Tr> <Th> 208 </Th> <Td> 13 </Td> <Td> "Beacon" </Td> <Td> Mike Rohl </Td> <Td> Don Whitehead & Holly Henderson </Td> <Td> February 11, 2011 (2011 - 02 - 11) </Td> <Td> 3X6013 </Td> <Td> 2.32 </Td> </Tr> <Tr> <Td_colspan="8"> Tess discovers that the alternate - universe Lionel has taken over LuthorCorp under the guise that he only faked his death years prior . Martha Kent holds an anti-VRA rally that results in her being shot by a spectator . Lionel finds the Lex clone in an abandoned building and realizes that he is the one who shot Martha, though his real intention was to kill Clark with kryptonite bullets . Later, Martha confronts Lionel and Lex at the Luthor mansion, but Lex subdues the others and sets fire to the mansion . Tess convinces Lex to give up his quest for vengeance, while Clark is able to save Lionel and Martha from the fire . Afterward, Tess attempts to kill Lex but discovers he is indestructible and the superheroes watch as the VRA is repealed by voters . </Td> </Tr> <Tr> <Th> 209 </Th> <Td> 14 </Td> <Td> "Masquerade" </Td> <Td> Tim Scanlan </Td> <Td> Bryan Q. Miller </Td> <Td> February 18, 2011 (2011 - 02 - 18) </Td> <Td> 3X6014 </Td> <Td> 2.22 </Td> </Tr> <Tr> <Td_colspan="8"> As Clark makes more saves around the world, resulting in more exposure of his face, Lois suggests that he develop a better secret identity . Meanwhile, Clark discovers the work of a serial killer in Metropolis and learns that the killer is a man named Desaad, a disciple of Darkseid . Desaad finds Chloe investigating his club so he kidnaps and tortures her . Clark saves Chloe before Desaad can turn Chloe into a Darkseid follower, but a confrontation between Oliver and Desaad leaves the former with an Omega tattoo on his skull . Later, Clark explains to Lois that his real identity is "The Blur", and that the persona of "Clark Kent" will be his true mask to the world . To accomplish this, Clark begins wearing eye glasses and changing his mannerisms to be more mild mannered . </Td> </Tr> <Tr> <Th> 210 </Th> <Td> 15 </Td> <Td> "Fortune" </Td> <Td> Christopher Petry </Td> <Td> Anne Cofell Saunders </Td> <Td> February 25, 2011 (2011 - 02 - 25) </Td> <Td> 3X6015 </Td> <Td> 2.56 </Td> </Tr> <Tr> <Td_colspan="8"> Zatanna sends magical champagne to Clark and Lois's bachelor / bachelorette party, which causes everyone to act out of character and afterward wipes their memory . As a result, Clark and Chloe wake up believing they are married, Emil is arrested for the theft of an armored truck, while Lois and Oliver wake up in the middle of nowhere with Lois's engagement ring missing . It is revealed that Emil was actually taken by casino owner Amos Fortune, who was trying to steal the armored truck himself, while Oliver and Lois discover that Lois lost her ring to Fortune in a rigged game of Black Jack . Lois and Oliver retrieve the ring, while Clark saves Emil from Fortune's henchmen . Afterward, Chloe announces that she is leaving, but Oliver reveals to Chloe they were the ones married, and they leave together . </Td> </Tr> <Tr> <Th> 211 </Th> <Td> 16 </Td> <Td> "Scion" </Td> <Td> Al Septien </Td> <Td> Al Septien & Turi Meyer </Td> <Td> March 4, 2011 (2011 - 03 - 04) </Td> <Td> 3X6016 </Td> <Td> 2.18 </Td> </Tr> <Tr> <Td_colspan="8"> Tess reveals that Alexander was genetically engineered from both Lex and Clark's DNA . Clark takes Alexander, now going by the name Conner (CNR), under his wing and attempts to teach him to control his powers . When Clark lies about where the other half of the DNA comes from, Conner flees and is found by Lionel who slips a red kryptonite ring on Conner's hand . Without his inhibitions, Conner's dark side comes out and he attempts to force Lois into loving him . Clark comes to the rescue and destroys the ring . Afterward, Conner returns home to the Kent farm and learns that Clark has enrolled him into Smallville High as "Conner Kent". Tess proves that Lionel is an imposter and retakes control over LuthorCorp . Later, Lionel is visited by Darkseid . </Td> </Tr> <Tr> <Th> 212 </Th> <Td> 17 </Td> <Td> "Kent" </Td> <Td> Jeannot Szwarc </Td> <Td> Teleplay by: Brian Peterson & Kelly Souders Story by: Genevieve Sparling </Td> <Td> April 15, 2011 (2011 - 04 - 15) </Td> <Td> 3X6018 </Td> <Td> 2.37 </Td> </Tr> <Tr> <Td_colspan="8"> Martha gives Clark and Lois the deed to the family farm as an early wedding gift, and the two decide it is best to sell the farm and move to Metropolis . Meanwhile, Clark Luthor arrives from the alternate universe and sends Clark Kent in his place before destroying the gateway between the universes . Lois quickly discovers the truth and works with Emil to bring Clark Kent back . Clark Luthor reveals himself to Tess and threatens to kill her if she does not help him find Lionel . Lois and Emil are successful and Clark Kent saves Tess before Clark Luthor can kill her . Luthor then follows Kent to the Fortress of Solitude, where Kent attempts to convince his Luthor counterpart to return to his universe and use his powers for good . </Td> </Tr> <Tr> <Th> 213 </Th> <Td> 18 </Td> <Td> "Booster" </Td> <Td> Tom Welling </Td> <Td> Geoff Johns </Td> <Td> April 22, 2011 (2011 - 04 - 22) </Td> <Td> 3X6017 </Td> <Td> 2.35 </Td> </Tr> <Tr> <Td_colspan="8"> While Lois helps Clark to develop a mild mannered persona, superhero Booster Gold shows up from the future to try to take the spotlight from the Blur . Clark confronts Booster and informs him that a true hero is not made by the suit they wear, but by who they are inside . A young teen, Jaime Reyes, comes in contact with alien technology that encases him in a weaponized robotic suit, thus becoming Blue Beetle . Unable to control the suit, Jaime begins destroying property and injuring people . Inspired, Booster recounts Clark's words to Jaime and helps him gain control over the suit . Afterward, Clark convinces Booster to mentor Jaime . </Td> </Tr> <Tr> <Th> 214 </Th> <Td> 19 </Td> <Td> "Dominion" </Td> <Td> Justin Hartley </Td> <Td> John Chisholm </Td> <Td> April 29, 2011 (2011 - 04 - 29) </Td> <Td> 3X6021 </Td> <Td> 1.99 </Td> </Tr> <Tr> <Td_colspan="8"> After learning that General Slade escaped the Phantom Zone, Clark enters the Kryptonian prison to learn who has opened the portal . Oliver follows against Clark's wishes and the two are captured by General Zod's soldiers . Zod reveals that, upon entering the Phantom Zone, he met Darkseid who helped him become the ruler of the prison . Zod also reveals that Oliver has the Omega symbol; he then forces Oliver and Clark to fight to the death . When Zod attempts to kill Clark during the fight, the pair steal back the key to the portal and return to Earth . Afterward, Oliver sets out to find the bow of Orion with the hope that it will help them to defeat Darkseid . </Td> </Tr> <Tr> <Th> 215 </Th> <Td> 20 </Td> <Td> "Prophecy" </Td> <Td> Mike Rohl </Td> <Td> Bryan Q. Miller & Anne Cofell Saunders </Td> <Td> May 6, 2011 (2011 - 05 - 06) </Td> <Td> 3X6019 </Td> <Td> 2.07 </Td> </Tr> <Tr> <Td_colspan="8"> Jor - El gives Lois all of Clark's powers, leaving him powerless, so that the two can see what it is like to live in each other's shoes for one day . Clark and the team discover that the imprisoned Toyman is leading a group of supervillains that include Dark Archer, Black Manta, Metallo, Captain Cold, Solomon Grundy, and Roulette . Lois receives an implant that allows Toyman to control her, and he sends her to kill the Blur . Clark is able to regain his powers in time to stop Lois . Meanwhile, Oliver and Kara team up and locate Orion's bow . Afterwards, Jor - El sends Kara to the future to forge her own destiny, as Clark is ready to accept his on Earth . Granny Goodness steals the bow from Oliver and destroys it, then sends him after gold kryptonite . Lois calls off the wedding so Clark can focus on saving people . </Td> </Tr> <Tr> <Th> 216 217 </Th> <Td> 21 22 </Td> <Td> "Finale" </Td> <Td> Kevin G. Fair Greg Beeman </Td> <Td> Al Septien & Turi Meyer Brian Peterson & Kelly Souders </Td> <Td> May 13, 2011 (2011 - 05 - 13) </Td> <Td> 3X6020 3X6022 </Td> <Td> 3.02 </Td> </Tr> <Tr> <Td_colspan="8"> Tess learns that the planet Apokolips is coming to Earth to destroy humanity . While verifying the threat, Tess discovers that Oliver is under the possession of Darkseid . Desaad, Godfrey, and Granny supply Oliver with a wedding ring made of gold kryptonite to give to Clark, as it will remove his powers permanently, but Chloe discovers the ring in time and keeps Clark from wearing it . Afterward, Clark helps Oliver to remove the Omega symbol and remove Darkseid's control over him . Lionel kidnaps Tess in an effort to transplant her heart into another Lex clone, but Tess escapes . Darkseid arrives and Lionel trades his soul for Lex's life . Possessing Lionel, Darkseid confronts Clark, who finally realizes that Jor - El was preparing him for this his entire life . Clark accesses his power of flight and vanquishes Darkseid from Lionel's deceased body . A newly revived Lex kills Tess, but not before Tess uses a neurotoxin to erase all of Lex's memories . Clark goes to the Fortress of Solitude and receives the suit Martha made for him before flying away to stop Apokolips from destroying Earth . By moving Apokolips away from Earth, Clark brings hope to humanity and breaks their connection to Darkseid . Moving ahead seven years, Lex is now President - elect of the United States, Clark and Lois are still trying to get married, and Clark has fully embraced his destiny as "Superman". </Td> </Tr> </Table> <Tr> <Th> No . overall </Th> <Th> No. in season </Th> <Th> Title </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> Prod . code </Th> <Th> U.S. viewers (millions) </Th> </Tr>

Is chloe sullivan in season 10 of smallville