The cast of True Detective is finally set, and cameras are rolling. More than two months after confirming Colin Farrell and Vince Vaughn ‘s roles in the second season of the Emmy-winning television series, HBO has officially announced the addition of Rachel McAdams, Taylor Kitsch and Kelly Reilly. The network also confirmed the 8-episode second season, in which Vaughn plays career criminal Frank Semyon and Farrell will play Det. Ray Velcoro, has started production in California.