Michael Sheen has signed up to appear in Doctor Who.
The Tron: Legacy star will feature in an episode of the hit BBC show written by fantasy writer Neil Gaiman, according to The Sun, but his character is being kept tightly under wraps.
Michael, 42, will reportedly appear alongside ex-Coronation Street actress Suranne Jones in an episode set on a junk yard alien planet.
Suranne will play Idris, who the Doctor has crossed paths with before.
James Corden will also be guest starring in the new series, reprising his role as landlord Craig Owen.
The sixth series of Doctor Who, starring Matt Smith as the Time Lord, begins on April 23 on BBC One. The new series has been split into two parts with the second showing in the autumn.