Please answer the following question: Facts:   - death place: north hollywood , california , u.s.    - years active: 1990 -- 2002    - birth name: glenn martin christopher francis quinn    - death date: 3 december 2002      - birth date: 28 may 1970    - image: glenn quinn.jpg    - birth place: dublin , ireland    - occupation: actor   Based on these bullet points, write a short biography describing the life of glenn quinn .
A:
glenn martin christopher francis quinn -lrb- may 28 , 1970 -- december 3 , 2002 -rrb- was an irish actor in television and film , known for playing mark healy in the american sitcom `` roseanne '' , and doyle , a half-demon , on the 1999 -- 2004 television series `` angel '' , a spin-off series of the television series `` buffy the vampire slayer '' .