The site claimed that their client Rob Cavazos "shortly flies to Spain to play Walter in the new series of Doctor Who".
Cavazos has chiefly worked in the theatre, but was previously involved with Channel 4's 2006 documentary Munich: Mossad's Revenge.
Filming on Doctor Who's seventh series will begin on Monday (February 20), with Scottish director Saul Metzstein at the helm.
Series stars Karen Gillan (Amy Pond) and Arthur Darvill (Rory Williams) will exit the show midway through the new run.
Gillan recently claimed that her character has a "damn good" exit, adding that she wanted to leave the sci-fi drama "on a high".
Doctor Who will return to BBC One in the autumn.
> Matt Smith teases Doctor Who casting, reveals filmmaking plans
Watch Matt Smith discuss his future with Doctor Who below: