I think the entire cast of "Star Trek" would certainly qualify. Shatner, Nimoy, Kelley will always be seen as Kirk, Spock and Bones and the rest of the cast is no different. Even after George Takei's recent coming-out, he will always be Sulu.
One, who is just stereotyped in my mind, is Robert Guillaume. He will always be "Benson Dubois". Even his short-lived stint on Aaron Sorkin's "SportsNight" and voice over work in "The Lion King" cannot erase his Benson character from my mind.
Another that comes up is Erik Estrada as Ponch on "CHiPS."
Joan Collins as Alexis Carrington-Colby-etc-etc-etc (aka the b!tch on "Dynasty") is yet another.
One, who is just stereotyped in my mind, is Robert Guillaume. He will always be "Benson Dubois". Even his short-lived stint on Aaron Sorkin's "SportsNight" and voice over work in "The Lion King" cannot erase his Benson character from my mind.
Another that comes up is Erik Estrada as Ponch on "CHiPS."
Joan Collins as Alexis Carrington-Colby-etc-etc-etc (aka the b!tch on "Dynasty") is yet another.