Who Do You Think You Are?Season 32012 · 12 episodesEpisodes1Martin SheenActor Martin Sheen traces his family tree, hoping to find his ancestors shared his love of activism; Martin discovers a family secret from the 1700s.2Marisa TomeiActress Marisa Tomei travels to Italy to uncover the truth about her great-granddather's death.3Blair UnderwoodActor Blair Underwood utilizes a DNA test to dig deeper into his family's roots, where he discovers the secret of his family's origin.4Reba McEntireCountry music star Reba McEntire heads to Raleigh, North Carolina as she explores her mother's ancestry.5Jerome BettisFormer professional football player Jerome Bettis travels to Kentucky to learn about his mother's side of the family.6Helen HuntAs actress Helen Hunt looks into her paternal family history, she uncovers missing information about her ancestors.7Rita WilsonActress Rita Wilson travels to Greece and Bulgaria to learn more about her late father.8Edie FalcoActress Edie Falco's journey to learn more about her mother's side of the family leads her to Milwaukee and England.9Rob LoweActor Rob Lowe examines his family history.10Rashida JonesActress Rashida Jones learns about her family history on her mother's side.11Jason SudeikisActor Jason Sudeikis heads to Chicago to research the life and death of his paternal grandfather and makes a discovery about his great great grandfather in Pennsylvania.12Paula DeenChef Paula Deen investigates her family history and learns about an event that affected her ancestors during the Civil War.Season 1Season 2Season 4Season 5Season 6Season 7Season 8Season 9Season 10Season 11Season 12