LOS ANGELES (AP)  Andy Hallett, who made his mark playing the green-skinned, good-guy demon Lorne on the TV series “Angel,” died Sunday in Los Angeles. He was 33.

The cause was congestive heart disease, which he had fought for five years, his agent, Pat Brady, said. Mr. Hallett was taken by ambulance to Cedars-Sinai Medical Center in Los Angeles after having problems breathing and died there.

Born and raised in Osterville, Mass., Mr. Hallett moved to Los Angeles when he was 23 and worked as a messenger at a talent agency, Mr. Brady said.

Image Andy Hallett in Angel. Credit... Nigel Parry/20th Century Fox, via Associated Press

He went on to become an assistant to the wife of Joss Whedon, originator of the hit series “Buffy the Vampire Slayer.” When Mr. Whedon saw the lanky Mr. Hallett perform karaoke, he had him audition for “Angel,” a spinoff of the “Buffy” series. Mr. Hallett won the part of Lorne.