Joss Whedon : Buffy, Angel, Firefly, Dollhouse, Avengers

Glenn Quinn mentioned on Ask Stacy Column at Cantonrep.com

2006-03-19T10:19:33Z

Dear Stacy: Whatever happened to the actor who played Mark on “Roseanne”? - Danny V., Bronx, N.Y.
Dear Danny: Dublin-born Glenn Quinn died of a heroin overdose at a friend's house in North Hollywood in December, 2002. He had also played the character of Allen Doyle on “Angel,” and his former cast mates and friends David Boreanaz and Christian Kane talk about him and how much they miss him on the Season 5 DVD (...) - News

Glenn Quinn - Findadeath.com Biography

2005-08-16T20:41:24Z

Glenn Quinn
Ireland born Glenn was Mark on Roseanne, and played Doyle on Angel as well as other roles.
Glenn was also the co owner/silent partner of a club called Goldfinger's which is just a couple of doors down from the PLA BOY liquor store in a particularly grubby area of Hollywood, mentioned in the Ed Wood story. Here is the back view of the bar, which I plan to check out soon.
The good folks at www.celebritycollectables.com sent me the autopsy report for this story, thus making it (...) - News