becomes the leader of the Hilltop Colony. (seasons 3–11; recurring season 2) Danai Gurira as Michonne: A fierce, katana-wielding woman who joins Rick's group. Michonne eventually becomes Rick's romantic partner and a mother-figure to his son, Carl. She is also the mother-figure to Judith, daughter of Lori and Shane. (seasons 3–10; special guest star season 11) Scott Wilson as Hershel Greene: A veterinarian and farmer who maintains his faith and acts as the group's primary moral compass. Hershel is the father of Maggie and Beth Greene. (seasons 3–4; special guest star season 9; recurring season 2) Michael Rooker as Merle Dixon: The racist and volatile older brother of Daryl Dixon. In the third season, he is the right-hand man to the Governor. (season 3; guest seasons 1–2) David Morrissey as Philip "The Governor" Blake: The antagonistic leader of the town of Woodbury, the Governor is ruthless, paranoid, and dangerous. (seasons 3–4; special guest star season 5) Emily Kinney as Beth Greene: A soft-spoken teenage girl who enjoys singing, Beth is Hershel's younger daughter and Maggie's younger half-sister. (seasons 4–5; recurring seasons 2–3) Chad L. Coleman as Tyreese Williams: Tough and compassionate, Tyreese places an emphasis on moral reasoning. He struggles to cope with the immoral nature of some of the group's survival tactics and finds it difficult to kill in defense of the group. (seasons 4–5; recurring season 3) Sonequa Martin-Green as Sasha Williams: Tyreese's fiery younger sister and a former firefighter, Sasha is the group's sharpshooter. After several personal losses, she suffers from PTSD. (seasons 4–7; special guest star season 9; recurring season 3) Lawrence Gilliard Jr. as Bob Stookey: A former army medic and recovering alcoholic who develops a close relationship with Sasha. (seasons 4–5) Michael Cudlitz as Abraham Ford: A former military sergeant on a mission to bring Eugene to Washington, D.C. to find a cure for the walker virus. (seasons 5–7; recurring season 4) Josh McDermitt as Eugene Porter: A man who claims to know a cure for the walker virus, Eugene is cowardly and inefficient when dealing with walkers, but is very intelligent. (seasons 5–11; recurring season 4) Christian Serratos as Rosita Espinosa: A tough, focused, and very capable survivor, and also Abraham's girlfriend. (seasons 5–11; recurring season 4) Alanna Masterson as Tara Chambler: A former police academy student, Tara joins Rick's group after having initially been affiliated with the Governor. She serves as a