<Ul> <Li> Suzy Simpson (played by Alyson Hannigan) appears in three episodes of season 6 . She is Kelso's buddy from police academy who is also attracted to him . Fez has a crush on Suzy and it is because of her that he and Kelso fight after Kelso lies to Fez saying that Suzy has agreed to go on a date with him when really she thinks that she is dating Kelso . </Li> <Li> Angie Barnett (played by Megalyn Echikunwoke) is Steven Hyde's half - sister . Hyde did not know he had a sister until the 7th season . Angie graduated from college as a mathematics major . Angie and Hyde worked together managing their father's record store, but Angie did not always like working with him . She dated Kelso, which sometimes annoyed Hyde . Angie got her name because, in the seventh season, all episodes were named after Rolling Stones songs, and "Angie" was a song by the Stones . </Li> <Li> Annette Berkardt (played by Jessica Simpson) was Michael Kelso's girlfriend for a brief period of time in season 5 . She acts and talks very similar to Jackie, constantly bossing Kelso around . Eric and Donna once referred to her as a blonde version of Jackie, or "Blackie ." Despite this, Jackie and Annette hated each other . Once at The Hub, Jackie said to Annette "I did not know they let' slutballs' in here". Annette said since she saw Jackie in there she thought it was okay . Later in the episode, when Annette and Kelso were kissing, Jackie yelled "Get off my boyfriend!" to Annette, even though it was months after Kelso and Jackie broke up . This led to Hyde wanting to break up with Jackie . </Li> <Li> Beatrice Dorothy "Bea" Sigurdson (née Heprage) (played by Betty White) is Kitty Forman's mother . Bea seems like a friendly old lady, but is cold and critical, especially of Kitty . She appeared in a few episodes in season five, often nagging at Burt or saying something rude to Kitty in a faux - friendly manner . She was widowed in "Your Time is Gonna Come" when Burt collapses in the driveway and is rushed to the hospital where he dies . She stays with the Formans for a while after Burt's death . </Li> <Li> Bernice Rose Forman (née Larson) (September 16, 1904--January 22, 1977) (played by Marion Ross) is Red Forman's mother . Bernice hated Kitty, and she was always mean to her, because Red married Kitty instead of another woman Bernice liked . She appeared in the episodes "Sunday, Bloody Sunday", "The Best Christmas Ever" and "Grandma's Dead" of season 1, and flashback in the episode "Halloween" of season two . In the episode Grandma's Dead she dies in Eric's car while he is driving her home . </Li> <Li> Brooke Leslie Rockwell (played by Shannon Elizabeth) was the valedictorian of the high school class two years before Eric's class . The summer after Kelso's graduation, she had sex with him at a Molly Hatchet concert in a bathroom stall and got pregnant . Initially, Brooke did not trust Kelso because of his immaturity and did not want him in the child's life . Eventually, Kelso convinced her to give him another chance . Brooke gave birth to their daughter, Betsy in 1979 . </Li> <Li> Steven James "Bud" Hyde Jr. (played by Robert Hays) is Steven Hyde's stepfather . Bud Hyde worked as a bartender and is an alcoholic . Until the end of the 6th season, Steven Hyde thought Bud was his biological father . Bud Hyde abandoned Steven when he was a child and Steven was always angry at Bud for this . They temporarily reconciled in season 3, with Hyde even moving in with him . However, he would leave again at the beginning of season 4 after getting back together with Edna--forcing Hyde to move back to the Forman house . Hyde mentioned that Bud did attempt to get in touch with him again . (Bud was passed out drunk on Hyde's car .) </Li> <Li> Bertrum Wayne "Burt" Sigurdson (October 4, 1901 - February 6, 1978) (played by Tom Poston) is Kitty Forman's father . He is often seen avoiding his wife, Bea . In one episode, he bought an ostrich farm, which was right next to a coyote farm . The coyotes ate all the ostriches and the Sigurdsons had to sell the house . Burt died in the episode Your Time is Gonna Come . </Li> <Li> Caroline "Crazy Caroline" Dupree (played by Allison Munn) was Fez's girlfriend in season 3 . Fez quickly learned Caroline is very jealous and paranoid . She made threats against Donna and Jackie because Caroline felt they were going to steal Fez from her, when in fact Jackie and Donna had no intention of doing so . Caroline was once found hiding in the men's bathroom looking for Fez . Fez did not want to be with someone that aggressive and paranoid so he broke up with her . Fez and Caroline were together one last time in the eighth season . She got extremely angry when she found out that Fez had lied to her about Jackie being his roommate, and when she found nude photos of Donna in Fez's Barry White album (Leo hid the nude photos in the album without Fez's knowledge, but Caroline believed they were put there by Fez). Caroline appeared again in "Sheer Heart Attack". Fez was having sex with women once and not seeing them again and then decided that he wanted to be with only one woman, so he called Caroline . Later in the episode, Jackie told Fez that she loved him and then kissed him as Caroline walked in . This, as always, made Caroline angry with Fez and attack him viciously . </Li> <Li> Casey (played by Luke Wilson) is Michael Kelso's brother who was in the military . Towards the end of season 4 he was dating Donna Pinciotti . During their relationship, there were instances of them engaging in bad behavior, such as Donna drinking and skipping school to hang out with Casey . Donna's father, Bob, felt that Casey was a bad influence and did not want Donna to date him anymore . Eric was jealous of Casey because he wanted to be with Donna, so Eric wanted them to break up . When Red Forman and Bob were discussing Casey's negative influence with Donna and Casey, Casey broke up with Donna, deciding the conflict with Bob and Red to be too much hassle . Donna felt that she and Casey were in love, but Casey felt "I love you" is just something you could say and do not have to really mean . Michael Kelso said that his brother Casey got bored with his girlfriends and broke up with them . During the summer of 1979, Casey was teaching physical education at Eric's old high school, and Eric was in Casey's class . He likes to call Eric "Foreplay". his last episode was Season 7's 2120 So . Michigan Ave . </Li> <Li> Charlie Richardson (played by Bret Harrison) is the son of one of Red's war buddies . Eric held a grudge against him from the time that he let some sick children win "Eric's" goldfish in an egg toss . Charlie only appeared in about three episodes towards the end of Season 7 . Before the beginning of Season 8, Charlie accidentally fell off the water tower and died . The water tower is named the Charlie Richardson Memorial Water Tower in his honor . The original idea was to have Charlie stay on the show the entire 8th season as a replacement for Eric, but the actor got an offer for his own show so they killed his character off . </Li> <Li> Christine St. George (played by Mary Tyler Moore) is a talk show host of What's Up Wisconsin . In the episode "Sweet Lady", Jackie felt she was destined to be Christine's co-host on the show . She persistently tries to get the job, but Christine St. George makes Jackie her assistant instead . After a few episodes, Jackie was fired for knowing too much about her . </Li> <Li> Earl (played by Robert Clendenin) is a friend of Red's who worked for Red at Price Mart . Earl frequently came to work late and slacked off on his job, so Red fired him . After that, Earl sued Red for wrongful termination, however, Earl arrived too late to his own hearing, so the judge ruled in favor of Red . Later, Earl got a job working at a fast food restaurant, where he is again fired for his poor work ethic (this time for repeatedly eating the restaurant's food while on work). Earl appears in the episodes "Red Fired Up", "Roller Disco" and "Radio Daze". </Li> <Li> Edna Hyde (played by Katey Sagal) is Steven Hyde's biological mother . She is only in the Season 1 episodes "Career Day", "Prom Night", and "Punk Chick", though she only appears in "Career Day". She plays a large part in "Career Day", playing opposite Hyde when on Career Day, he has to help her in the kitchen (she was the school chef, "Gross Edna" at the time). In other episodes she only has lines yelling at Hyde on the porch from the inside of the house such as: <Ul> <Li> In Prom Night Edna: "They're all gonna laugh at you!" (a reference to the 1976 film Carrie) Steven: "Shut up ma, you're makin' the night too damn special!" </Li> <Li> In Punk Chick Steven: "It's still my suitcase!" Edna: "Nothing in this house is yours!" Steven: "Shut up!" </Li> </Ul> </Li> </Ul> <Li> Suzy Simpson (played by Alyson Hannigan) appears in three episodes of season 6 . She is Kelso's buddy from police academy who is also attracted to him . Fez has a crush on Suzy and it is because of her that he and Kelso fight after Kelso lies to Fez saying that Suzy has agreed to go on a date with him when really she thinks that she is dating Kelso . </Li> <Li> Angie Barnett (played by Megalyn Echikunwoke) is Steven Hyde's half - sister . Hyde did not know he had a sister until the 7th season . Angie graduated from college as a mathematics major . Angie and Hyde worked together managing their father's record store, but Angie did not always like working with him . She dated Kelso, which sometimes annoyed Hyde . Angie got her name because, in the seventh season, all episodes were named after Rolling Stones songs, and "Angie" was a song by the Stones . </Li> <Li> Annette Berkardt (played by Jessica Simpson) was Michael Kelso's girlfriend for a brief period of time in season 5 . She acts and talks very similar to Jackie, constantly bossing Kelso around . Eric and Donna once referred to her as a blonde version of Jackie, or "Blackie ." Despite this, Jackie and Annette hated each other . Once at The Hub, Jackie said to Annette "I did not know they let' slutballs' in here". Annette said since she saw Jackie in there she thought it was okay . Later in the episode, when Annette and Kelso were kissing, Jackie yelled "Get off my boyfriend!" to Annette, even though it was months after Kelso and Jackie broke up . This led to Hyde wanting to break up with Jackie . </Li>

Who played hyde's sister on that 70s show