Live Action
Scrooge (1970)-Albert Finney; some great songs!
Christmas Carol (1938)-Reginald Owen; many people would know him as Admiral Boom on "Mary Poppins;" Spaz-boy! (have you seen that Tiny Tim?!?!?)
Christmas Carol (1999)-Patrick Stewart;
Muppet Christmas Carol (1992)-Michael Caine; It has Muppets, it has music, it even has Sprocket. What more could you ask for (okay, maybe a Doozer)?
Christmas Carol (1984)-George C. Scott;
Christmas Carol (2004)-Kelsey Grammar; great songs, fun way to incorporate the ghosts!
Animated
Animaniacs (1999)-Thadeous Plotz; It's one cartoon on a whole Christmas themed tape
Maxine (2000)-Maxine; who doesn't love Maxine? And there's nothing wrong with homemade!
Mr. Magoo's Christmas Carol (1962)-Mr. Magoo; this one takes place on the stage