<Li> Luke Mitchell as Roman Briggs (born Ian Kruger) (seasons 2--3), Jane's brother and a member of Sandstorm . Jane wiped his memory after he turned against Shepherd, and he remained in FBI custody for a while . After regaining his memories, including that of Jane erasing his memories, he turns against her and rejoins Shepherd during her attack on the FBI's New York Office . In season 3, he devises a complex scheme to get revenge on Jane that involves covering her with new, bioluminescent tattoos . At the end of the season, he is fatally shot by Blake Crawford, and dies in Jane's arms . </Li> <Li> Michelle Hurd as Ellen "Shepherd" Briggs (season 2; guest season 3), Jane's and Roman's adoptive mother and leader of the terrorist group Sandstorm . She was a major general with the Defense Threat Reduction Agency, and has been manipulating Weller's life since he was a teenager . </Li> <Ul> <Li> Johnny Whitworth as Markos (season 1), a mysterious man connected to Jane's past . He was killed by an initially unknown sniper--later revealed to be Oscar--in Jane's safe house . It is later revealed that he was a member of Sandstorm but grew disenchanted with their treatment of Jane . </Li> <Li> Jordana Spiro as Sarah Weller (season 1), Kurt's sister . Sarah tries to heal Kurt's lingering emotional trauma from Taylor Shaw's disappearance, as well as repair the broken relationship between Kurt and their terminally ill father . She was in love with Kurt's co-worker and friend, Edgar Reade, until he breaks up with her to protect her and her son . </Li> <Li> Logan Schuyler Smith as Sawyer (season 1), Sarah's son and Kurt's nephew . </Li> <Li> Michael Gaston as Thomas "Tom" Carter (season 1), CIA Deputy Director, who is connected with Mayfair to the clandestine Operation Daylight . He is strongly interested in Jane due to concerns that her tattoos could reveal Daylight's existence . He was killed by Oscar while trying to interrogate Jane . </Li> <Li> Joe Dinicol as David Wagner (seasons 1 and 3), Patterson's boyfriend . Patterson broke up with him after being reprimanded for sharing the tattoos with David . He was killed by a Russian agent for investigating an undercover spy ring, but reappeared in Patterson's coma dream in season 3 . His character was modeled after David Kwong, who works as a puzzle consultant for the show . </Li> <Li> Jay O. Sanders as Bill Weller (season 1), Kurt and Sarah's father, who was accused of kidnapping and killing Taylor Shaw because he lied about his alibi, resulting in the destruction of his life and marriage and the end of his relationship with his son . He is terminally ill with lung cancer . Later, he admits he was attempting suicide the night of Taylor's disappearance, finally earning Kurt's trust back . However, he confirms on his deathbed that he genuinely did kill Taylor Shaw, although his words imply that it was accidental . </Li> <Li> François Arnaud as Oscar (season 1), a mysterious man connected to Jane's past . Partial flashbacks have revealed Oscar is Jane's ex-boyfriend and they planned to marry, but Jane broke off the engagement . Although he appeared to be Jane's ally against some of the radical elements of Sandstorm, the terrorist organization that gave Jane her tattoos, it was later revealed that he lied to her about her past identity as Taylor Shaw, and seemingly harmless tests were actually part of a complex scheme to frame Mayfair for murder and corruption . When he attempts to inject Jane with a new dose of drugs to erase her memory again, Jane attempts to arrest him, but accidentally stabs him in the heart with a scythe as they fought in a burning barn . </Li> <Li> Lou Diamond Phillips as Saúl Guerrero (season 1), a notorious gang leader and Number Two on the FBI Ten Most Wanted Fugitives list, who is connected to Operation Daylight, serving as the' official' source of the information Mayfair gained from the program . He was killed on Tom Carter's orders while in prison . </Li> <Li> Trieste Kelly Dunn as Allison Knight, a former FBI agent, now a U.S. Marshal and FBI WITSEC liaison . She is Kurt's ex-girlfriend, who attempted to restart their relationship . She and Kurt have a daughter, Bethany . </Li> <Li> John Hodgman as Jonas Fischer (season 1), a Chief Inspector in the FBI Office of Professional Responsibility who was maneuvering to replace Mayfair . He was later exposed as a Russian agent and killed by Jane while attempting to frame her as the mole in his place . </Li> <Li> Ennis Esmer as Rich Dotcom (real name Gord Enver), a former computer programmer turned Internet crime lord . Eccentric and manic, Rich often embroils Weller's team in elaborate, convoluted schemes to achieve his goals . In season 3, he begins working with the FBI . </Li> <Li> Josh Dean as Boston Arliss Crab, an art restorer who is Rich Dotcom's partner in crime and ex-boyfriend . </Li> <Li> Sarita Choudhury as Sofia Varma (season 1), Deputy White House Political Director, who was connected with Mayfair to Operation Daylight and was Mayfair's girlfriend . She was reported to have killed herself, affecting Mayfair deeply . She was later revealed to have faked her death and gone into hiding supposedly to escape unknown pursuers, although she was really part of the conspiracy behind Jane's tattoos and participated in a later plot by Oscar to frame Mayfair for murder . </Li> <Li> Eisa Davis as Donna Hollaran / Alexandra Harrison (season 1), apparently a sales clerk who becomes romantically involved with Mayfair . She is stabbed to death in her hotel room as a warning for Mayfair to stay away from Carter's death . The investigation that follows implicates Mayfair as the killer--according to evidence Oscar manipulated Jane into planting in Mayfair's office--and reveals Alexandra as a disgraced private - investigator - turned - fixer who is under federal investigation . </Li> <Li> Aaron Abrams as Matthew Weitz, an ambitious Assistant U.S. Attorney secretly investigating FBI corruption and specifically targeting Mayfair on the grounds of misconduct, with Zapata's reluctant involvement . He becomes a Congressman . </Li> <Li> Jonathan Patrick Moore as Oliver Kind (season 2), a water conservation specialist who befriended Jane . </Li> <Li> Dylan Baker as Sam Pellington (seasons 1--3), the Director of the FBI . He was killed by Shepherd during Sandstorm's attack on the FBI in season 2, but reappeared in Patterson's coma dream in season 3 . </Li> <Li> Chad Donella as Jake Keaton (season 2--present), Deputy Director of the CIA, who succeeded Tom Carter after the latter's death . He tortured Jane for information after the FBI turned her over to the CIA . He occasionally crosses paths with Weller's team during covert missions . In season 3, he becomes Zapata's superior when she joins the CIA . </Li> <Li> Li Jun Li as Karen Sun (season 2), a psychiatrist whom Nas Kamal brought in to evaluate Roman's psyche . After Borden's exposure as a Sandstorm mole, she assumed his role as psychiatric counselor for Weller's team . </Li> <Li> Mary Stuart Masterson as Eleanor Hirst (seasons 2--3), Director of the FBI and Pellington's successor . Though she at first formed a friendship with Jane, Weller, and the team and helped take down Sandstorm at the end of season 2, she was eventually revealed to be corrupt in season 3 after killing a fellow agent to cover up her connections to corrupt business magnate Hank Crawford, and arrested . </Li> <Li> Tori Anderson as Blake Crawford (season 3), a wealthy socialite, daughter of Hank Crawford, whom Roman befriends and with whom he becomes romantically involved . At the end of season 3, she fatally shoots Roman after learning his true identity, and inherits her father's company after his death . </Li> <Li> Kristina Reyes as Avery (season 3), Jane's daughter, result of a teenage pregnancy, who was taken from her by Shepherd in order to keep Remi focused on Sandstorm and their mission . </Li> <Li> David Morse as Hank Crawford (season 3), a powerful businessman heading a criminal conspiracy, and Blake Crawford's father . He is killed by Jane at the end of season 3 . </Li> <Li> Reshma Shetty as Megan Butani (season 3), an investigative journalist and Reade's ex-fiancee, until their breakup near the end of the season . </Li> </Ul> <Li> Johnny Whitworth as Markos (season 1), a mysterious man connected to Jane's past . He was killed by an initially unknown sniper--later revealed to be Oscar--in Jane's safe house . It is later revealed that he was a member of Sandstorm but grew disenchanted with their treatment of Jane . </Li>

Who plays kurt weller's father on blind spot