Oscar winner and former "Doctor Who" star Peter Capaldi has joined James Gunn's "The Suicide Squad" at Warner Bros. Pictures, while SNL alum Pete Davidson is also in talks for a cameo.

There are no details given as to who they might play, but they join the previously announced cast of Margot Robbie as Harley Quinn, Viola Davis as Amanda Waller, Jai Courtney as Captain Boomerang, Joel Kinnaman as Rick Flag, Idris Elba, David Dastmalchian as Polka-Dot Man, Daniela Melchior as Ratcatcher, Flula Borg, and Steve Agee will provide the voice of King Shark. Nathan Fillion andThor: Ragnarok director Taika Waititi are also said to be joining the film as well.

Gunn is both writing and directing The Suicide Squad for DC, which will feature an entirely new group of villains.

Source: Press Release