I never watched an X-men, nor the old Dune, so for me Patrick Stewart is Jean-Luc Picard.

Jason Alexander is cemented in my memory as George Costanza.

William Shatner and Leonard Nimoy as Kirk and Spock in the early Startrek films and series.

Lucy Lawless will forever be Xena the Warrior Princess.

For me, it's David Tennant as The Doctor. It was very strange seeing him in Good Omens.

Jaleel White is forever Steve Urklel.

Alfonso Ribeiro is Carlton.

Sarah Michelle Gellar will always be Buffy Summers to me.

Daniel Radcliffe.

After seeing Swiss Army Man, I can never not see him as a useful corpse. He nailed that role.

Prince will always be, for me, the guy who played Prince in Purple Rain.

Ryan Reynolds Van Wilder

Norman Reedus with forever have "and the funky fetus" after his name because of Death Stranding.

Danny Trejo is of course Machete (or Uncle Machete to the Spy Kids) - even if he does occasionally rangle Rancors or other roles.

(But only when I can see him. I had no idea he had that many voice roles until looking him up just now)

Sarah Jessica Parker is Carrie Bradshaw.

Roger Moore as Bond - he wasn't the best Bond, just that he played that character for like 30 years, starting with The Saint in the 60's.

Once you see him there, it's hard to see him as anything else.

david thewlis' role in fargo! /season 3, just so good!

Peter Lustig. But he also played himself and had full power over his show.

Martin Freeman as Bilbo

Til Schweiger as his arrogant asshole self

Idris Elba and Dominic West will always be Stringer Bell and Jimmy McNulty for me.

Young Guns will forever in my head have Jack Bauer in a leading role.

Joe Rogan is Joe Garrelli in News Radio

Dude, Walter, Donnie and the Jesus from The Big Lebowski. Whenever I see Turturro play any other role, he's so bland and normal.

Ian McKellan is Gandalf, and I will fight anyone to the death who disagrees.