The details of when/how Marvel nearly fired Grillo are largely a mystery, he spilled the beans on his role in Avengers: Endgame before Endgame even had an official title. Given the surprise nature of a dead character showing up in the past, one has to assume that was an instance that didn't please the studio.

DC Universe actor Frank Grillo claims Marvel warned him multiple times about leaking movie details during his MCU stint.

Frank Grillo, who had a short stint in the MCU as the villainous Crossbones, has revealed that Marvel Studios almost fired him a number of times. Though he might well be exaggerating, find out

Frank Grillo reveals his struggles with keeping secrets in the Marvel Cinematic Universe and find out why he was nearly fired multiple times.

Frank Grillo came under fire at Marvel for one grave mistake which gave Tom Holland an ill-repute. But the actor won't repeat this.

Creature Commandos star Frank Grillo says he was "almost fired" 36 times by Marvel for unintentionally sharing spoilers about the MCU.