a BBC Cymru Wales Drama Production ; executive producers, Brian Minchin and Steven Moffat ; directed by Jamie Payne ; written by Steven Moffat ; produced by Marcus Wilson
produced by Mutant Enemy Inc. in association with Twentieth Century Fox Television ; created by Joss Whedon ; executive producers, Joss Whedon, Tim Minear ; producers, Ben Edlund, Gareth Davies
CBS Studios, Inc. ; Paramount Pictures ; created by Gene Roddenberry ; directed by Marc Daniels ... [and others] ; produced by Fred Freiberger ; teleplay by Arthur Heinemann .. [and others] ; story by Lee Cronin ... [and others]].