September 10, 2013
TLC announced today that Who Do You Think You Are? has been renewed for a fifth season. The news comes ahead of tonight's Season 4 finale, which caps its first run on TLC after being cancelled by NBC in 2012.
Celebrity contributors will include Valerie Bertinelli, Jesse Tyler Ferguson, Lauren Graham, Kelsey Grammer, Rachel McAdams, and Cynthia Nixon.
Season 5 will return to TLC in 2014 with 10 new episodes.