I don't agree with your assessment of these actors being known for only one high-profile role personally. Theroux is starring in a show right now on Apple TV+, Hamm has worked constantly since Mad Men, and Hall was a TV star before Dexter as he was a lead on Six Feet Under...

The likely answer is these guys all made it and are older (they're coincidentally all 51 years old right now) - they can do whatever projects they are passionate about.