Donning several bolts in his head and sporting a stern, no-nonsense expression, the Scottish star transformed into the role of The Thinker for the anticipated DC movie.
One tweeted: ‘Peter Capaldi, you’re not in Doctor Who anymore’.
Another gushed: ‘Peter Capaldi in a Major Motion Picture. He’s even got a movie poster! #DoctorWho #TheSuicideSquad.’
A third wrote: ‘As far as I’m concerned, Peter Capaldi is still playing Malcolm Tucker in The Suicide Squad and that’s that.’
Fans couldn’t believe Peter also had his own poster for the movie (Picture: DC/WB)
Peter played the titular character in Doctor Who from 2008 to 2017, and his last acting credit was in the TV movie Martin’s Close in 2019.
The Suicide Squad’s director James Gunn announced that the actor would play the villainous role of The Thinker last year.
Meanwhile, DC fans were left impressed and wanting more after the movie’s first trailer dropped on Friday.
Super-villains Bloodsport, Peacemaker, Captain Boomerang, Ratcatcher 2, Savant, King Shark, Blackguard, Javelin and Harley Quinn join a collection of Belle Reve prison cons for a secret Task Force X.
The squad are heavily-armed and dropped off at the remote, enemy-infused island of Corto Maltese, with only Colonel Rick Flag on the ground to make them behave.
Teasing that some of the Suicide Squad characters’ end up being terrible’, the Guardians of the Galaxy director shared: ‘They don’t just get in fights and say they’re going to kill each other, they actually do get in fights and kill each other.’
The Suicide Squad is set to be released in theatres and HBO Max on August 6.