Andy Hallett (4 August, 1975 – 29 March, 2009) was an American singer and actor best known for his role as Lorne (The Host) in the television fantasy series Angel, from 2000-2004.
A month after filming the last episode of Angel, Hallett suffered a dental infection which spread through the bloodstream to his heart, leading to a case of cardiomyopathy, for which he spent five days in the hospital.
Although he recovered, his heart muscle and valves were weakened and he found himself easily fatigued afterward. He did not return to acting (except for a voice part in the animated film Geppetto's Secret), but pursued his music career and frequently appeared at media conventions for Buffy and Angel and for science fiction and fantasy in general.
Five years after first experiencing heart problems, and after at least three additional hospitalisations, Hallett died from congestive heart failure on March 29, 2009 at Cedars-Sinai Hospital in Los Angeles with his father by his bedside. He was 33 years old.