The new season of Who Do You Think You Are? is launching on July 23rd with an outstanding cast on TLC. The series, which delves into the ancestral history of public figures and celebrities, will feature contributors including Valerie Bertinelli, Jesse Tyler Ferguson, Lauren Graham, Kelsey Grammer, Rachel McAdams and her sister Kayleen McAdams, and Cynthia Nixon.
The fifth season premieres on July 23 at 9 p.m. EST/PST. Check your local listings for the channel near you.