"Doctor Who's" Karen Gillan also recently joined the cast of Marvel's "Star Wars"
The character Del Toro would play has not yet to be revealed.
Like most actors that sign up to star in Marvel’s films, Del Toro’s deal will involve multiple films.
James Gunn (“Super”) is directing “Guardians,” which Disney will release Aug. 1, 2014.
“Guardians” revolves around a U.S pilot who bands with a group of ex-cons from other planets after he’s thrust in the middle of a universal conflict. Marvel is positioning the film as its own “Star Wars.”
Del Toro will next be seen in “Jimmy P,” which bowed at the Cannes Film Festival.
Deadline first broke the news.