The "Milk" actor, who has his own history of violence, raged at the Oscar winner over the 2022 incident.
Actor talks of his riveting experiences with Ukrainian president before premiere of his documentary about Zelenskyy, "Superpower."
“When you win, bring it back to Malibu," Penn told Ukrainian President Volodymyr Zelenskyy.
The two actors were among 25 Americans who've criticized Russia's invasion of Ukraine.
“I think we all saw what happened on January 6, and now we’re looking to see if justice comes on the other side of it,” Penn said.
The actor visited the right-wing Fox News host for a chat about the war in Ukraine.
"One billionaire could end this war," tweeted Penn, who was in Ukraine when Russia invaded. It's "worth a think."
The Oscar winner was in the country working on a documentary about the Russian invasion.
The "Westworld" star branded Penn "tragic" and a "jibbering FOOL" after he bemoaned a lack of "masculinity" and "male behavior" in American culture.
The actor’s firm stance comes as COVID-19 cases surge in California due to the delta variant.