As his fans already know, Mark Ruffalo is on the vocal side.
He was recently praised on social media for what he said about sexual harassment in an interview with UK?s Channel 4 News.
?It?s wrong whether it?s a president, it?s wrong whether it?s Harvey Weinstein, it?s wrong whoever?s doing this s–t and we have to stand up for it, and stand behind the women who have to deal with this in a system that?s basically for years has been in place and they?ve had to negotiate it.?
The ?Thor: Ragnarok? actor also has been especially outspoken about how he feels about hydraulic fracturing, aka fracking.