There’s a lot we’ll never know about the notorious teamsters boss. Despite Sheeran’s confession, we may never learn for sure who killed Jimmy Hoffa — as many experts have pointed out, there are some holes in Sheeran’s story — and we certainly won’t know what he was really like behind closed doors.

We do know, however, what Hoffa was like in public. The Irishman actually recreates part of Hoffa’s iconic Congressional showdown with Robert Kennedy, and the differences between the real Hoffa and Pacino’s interpretation are immediately clear. Instead of Pacino’s signature growl, Hoffa speaks like an old-school film announcer, and where Pacino sits respectfully and largely evades Kennedy’s questions, the actual Hoffa is ready to attack. He cuts off Kennedy at every point, spitting out facts and excuses and pointing accusingly at his interrogator. It’s not an interrogation. It’s a battle.

The roles are reversed when Hoffa addresses the press. In real life, he’s calm and under control, much like a politician. In The Irishman, he’s far less polished. As Pacino plays him, Hoffa seems defiant and angry, like he’s on the verge of exploding with rage. The one thing that both versions have in common, though? Whether you’re watching the actual Hoffa or Pacino’s take, he’s absolutely bursting with charisma. You can instantly understand why so many people followed him.

He may only be in a few scenes, but as Hoffa’s rival, Anthony “Tony Pro” Provenzano, actor Stephen Graham makes a huge impact. Whether he’s tussling with Hoffa in prison or showing disrespect by showing up late to a meeting, Graham practically steals every scene he’s in — no small task, given the talent he shares the screen with.

But that’s not all. Graham also does a pretty canny impersonation of the real Tony Pro. Look at how he moves through an adoring crowd during his introduction, or the brief speech he gives to his fellow Teamsters. Graham is a little more animated, but otherwise, it’s almost exactly like the real thing.

The actual Tony Pro also shares his on-screen counterpart’s laid-back approach to fashion, too. Later in life, a tanned Tony Pro gave a shirtless interview to a national newscaster, and was later photographed in a gaudy checkered shirt and striped jacket. And Hoffa thought a pair of shorts was bad!

Most criminals try to stay out of the spotlight. Not Joseph “Crazy Joe” Gallo, though. He embraced it. Whether he was trading barbs with Don Rickles at the famous Copacabana night club or palling around the city with actors like Jerry Orbach, Gallo was a fixture of New York’s high society. He also just happened to be a mobster who’d kidnapped four of his boss’s top enforcers, started one gang war, and was directly implicated in another.

In The Irishman, stand-up comedian Sebastian Maniscalo plays Crazy Joe Gallo with a cocky swagger that embodies the gangster’s public persona. He even wears Gallo’s signature sunglasses. That being said, Maniscalo might look a little too good for that period in the gangster’s life. After Gallo was released from prison, his wife described him as “extremely frail and pale. He looked like an old man. He was a bag of bones,” although she notes that his natural charisma made him irresistible regardless.

The Irishman‘s interest in Robert Kennedy doesn’t extend beyond his stint on the McClellan committee and his time as attorney general, during which he did everything he could to put Jimmy Hoffa behind bars. In reality, however, Kennedy was so much more. He was the brother of the President of the United States, a civil rights advocate, a presidential candidate and, ultimately, Robert Kennedy was the victim of a controversial assassination.

Still, as far as The Irishman is concerned, Bobby Kennedy is only a bit player, and his screen time reflects that. He’s only in the movie for a few minutes, where he’s played by Boardwalk Empire, Ben-Hur, and Fargo star Jack Huston. Huston only kind of looks like real RFK and he’s lacking the fire the real deal showed during the actual hearings — although he nails the Kennedys’ distinct Boston accent — but that’s okay. This is Robert Kennedy as Hoffa and Sheeran saw him: a spoiled, rich, and befuddled pretty boy who’s coming after the working man, and is in way over his head. On that count? Huston more than delivers.