Apart from its recent premiere announcement and a handful of cast announcements, 'Doctor Who' season 8 has done a good job keeping the adventures of Peter Capaldi's twelfth Doctor under wraps. Now, however, a new set photo reveals at least one major 'Who' baddie clanking their way through the season, along with another villainous cast addition.

Courtesy of the BBC's 'Doctor Who' Twtter account, a new on-set look at Peter Capaldi as the newest Time Lord incarnation confirms rumors we'd been hearing for months, namely that the infamous Cybermen would return to menace the universe in season 8. Not only that, but the new photo also shows off 'Green Wing' actress Michelle Gomez in the mysterious new role of "The Gatekeeper of the Nethersphere."

Elsewhere, we’ve seen Peter Capaldi’s new costume, and even heard rumblings that Matt Smith could make a special appearance in the premiere. Samuel Anderson will guest as mysterious new companion Danny Pink, while Keeley Hawes will portray the villainous Ms. Delphox, in episode written by ‘Sherlock”s Steve Thompson and directed by Douglass Mackinnon. Ben Miller will portray yet another villain, and Hermione Norris has also been given a mysterious role.

Sadly, we won't be seeing 'Doctor Who' land at Comic-Con 2014, but the world tour with stars Peter Capaldi and Jenna-Louise Coleman should more than prepare us for the August 23 premiere. In the meantime, check out the latest 'Doctor Who' season 8 photo below, and tell us in the comments which classic foes you'd like to see return in the newest episodes!