Mark Ruffalo slams Kevin O’Leary with ‘Marty Supreme’ comparison

Mark Ruffalo has some scathing words for Kevin O’Leary after he slammed Billie Eilish

By Aamna Razi February 07, 2026
Mark Ruffalo slams Kevin O’Leary with ‘Marty Supreme’ comparison
Mark Ruffalo slams Kevin O’Leary with ‘Marty Supreme’ comparison 

Mark Ruffalo is adding to the list of people speaking up against Kevin O’Leary, after the latter criticised Billie Eilish’s Grammys acceptance speech.

The Bad Guy singer had made political statements against Immigration and Customs Enforcement officials and their incited violence, which was slammed by the Shark Tank alum who said that entertainers should only stick to entertaining.

In response to all this, the Shutter Island actor took to Threads to write “Why don’t you STFU. It’s hilarious, you will go on any show and talk shit about any number of things and smugly expect us to listen to you.”

“It’s astounding the fantasy double standard Kevin O’Leary lives in. You played yourself well in ‘Marty Supreme,'” Ruffalo added.

The Avengers actor is not the only one who has publicly commented on the matter and supported Eilish, since her brother Finneas Baird O'Connell was one of the first to publicly defend her on the platform.

Notably, many other celebrities had made Anti-Ice comments at the prestigious event, with a number of them even wearing “Ice Out” pins on their outfits.

Who was Billie Eilish with at the Grammys?

Eilish attended the Grammys with boyfriend Natt Wolf.
RELATED: Billie Eilish’s brother Finneas mentions Epstein in sharp jab at haters