Andy Hallett, a singer who gained fame portraying a green-skinned demon on the dark vampire series "Angel," died Sunday night at Cedars-Sinai Medical Center, a spokesman for the Los Angeles County coroner's office said Tuesday.
He was 33.
Hallett had called 911 Sunday evening complaining of shortness of breath, said Ed Winter, a coroner's spokesman.
The actor was rushed to the hospital, where he was pronounced dead at 8:35 p.m.
An autopsy is pending.
Hallett was born in 1975 in the village of Osterville, Mass., part of the town of Barnstable, on Cape Cod. He attended Assumption College in Worcester and studied business.