Don Cheadle is Not Too Impressed with Mark Ruffalo

Cobie Smulders, Chris Evans, Don Cheadle, Claudia Kim, Chris Hemsworth, Robert Downey Jr, Jeremy Renner, Mark Ruffalo, Scarlett Johansson in "Avengers: Age Of Ultron." Photo by Marvel/Walt Disney Pictures/Kobal/REX/Shutterstock (5886283j)

Mark Ruffalo’s habit of loose lips is losing him friends — or at the very least, co-stars.

Remember that time that the Avengers: Infinity War star accidentally let slip that everyone dies in the movie?

Yeah, so does Marvel.

Someone else who remembers is Mark’s co-star Don Cheadle (aka War Machine), who was with him at the time of the Good Morning America interview.

Studios have a habit of pairing certain actors together for all press interviews, but Don is saying no more!

“[Mark] runs his mouth a lot,” the 54 year old said on The Tonight Show with Jimmy Fallon. “Why do I need that hassle? I don’t need to be sitting next to him when he blows the whole reveal of the movie. Him, Tom Holland, they both… little chatty.”

Mark, stay mum!