The US actor even used the #grime4corbyn hastag made popular by MC JME as he endorsed the Labour leader on Twitter.
As HuffPost UK exclusively reveals a Loughborough University study of the media showing the majority of national newspapers have been more critical of Corbyn and the Labour party than positive, we take a look at the other unexpected celebrities who stood up for the man they believe in.
1) Rag’n’Bone Man
He won the Critics’ Choice award at the Brits this year and you’ll hear his songs in most TV shows at the moment, but now the singer also known as Rory Graham has revealed his support for Jezza.
2) The Chicken Connoisseur
Grime legend Stormzy has also voiced his support for Jeremy Corbyn. In an interview with the Guardian last year he said: “My man, Jeremy! Young Jeremy, my guy. I dig what he says. I saw some sick picture of him from back in the day when he was campaigning about anti-apartheid and I thought: yeah, I like your energy.
“Have you seen that footage of House of Commons? They’re all neeky dons! The way they all laugh and cheer. Is this fucking Game Of Thrones? You lot have got real issues to talk about and deal with. That’s why I like Jeremy: I feel like he gets what the ethnic minorities are going through and the homeless and the working class.”
4) Samantha Womack
The actress who played Ronnie Mitchell in EastEnders has also backed Corbyn via Twitter.
Rapping songstress M.I.A praised Corbyn’s humanity to her 711k followers.
You’ve probably seen Boy Better Know co-founder and grime legend JME work with Corbyn in recent weeks but here’s an earlier endorsement last month.
The pair are now doing important work in a bid to engage young voters.
7) AJ Tracey
The west London grime MC also endorsed Corbyn soon after Theresa May called for a snap election.
And was soon joined by south London grime MC Novelist.
And rapper Akala decided to vote for the first time and voiced his support a day later.
10) Ashley Theophane
Boxer Ashley Theophane is also endorsing Corbyn on Twitter.
11) Hussain Manawer
As is the first British Muslim astronaut, poet and mental health campaigner Hussain Manawer.
12) David Vujanic
YouTube sensation VUJ is also on board with Corbs.
13) Neville Southall
The ex-Everton goalie voiced his support for Corbyn this week and followed with an anti-Theresa May rant on Twitter on Thursday and Friday.
14) Ronnie O’Sullivan
The snooker player is also backing Corbyn.
The comedian and long-time Labour supporter recently shared a pic with Jeremy Corbyn without directly endorsing him. But we thought we’d share anyway.