Noah Wyle gets interrupted during our interview when someone from his team walks in with a prosthetic leg. It’s the one used in the sixth episode of The Pitt’s second season, which the actor directed, when a guy has a motorcycle accident that rips open his leg. As he holds it up to the camera so I can get a good look, a big smile spreads across his face. It’s just another day in the life of Wyle, who not only stars as Dr. Michael “Robby” Robinavitch on the hit HBO series, but is also one of the creative forces behind the series—producing, writing, and sometimes directing. When we speak, he’s deep in the writing process for season three. “What’s the opposite of fresh as a daisy?” he jokes about his current state of mind. He’s playing hooky from the writers room to talk to me, but the show is at the forefront of his mind. “Storylines are going up on the board. We have a good concept for everybody’s story arc and we’re about …