Stocky, distinctly Irish-American character actor and occasional writer who specializes in gruff characterizations in broad American comedies. The brother of Bill Murray, this gravelly-voiced performer has been a familiar face in the "Saturday Night Live"/National Lampoon/Second City nexus of stage, TV and film productions since the 1970s. Like many of his comic contemporaries, Doyle-Murray started out in the famed Chicago Second City improvisational troupe. He went on to rack up theatrical credits with the Organic Theater of Chicago and the Boston Shakespeare Company before appearing off-Broadway in "The National Lampoon Show". Doyle-Murray also appeared on the weekly radio series, "National Lampoon Show".

Doyle-Murray was a writer and sporadic performer during the halcyon days of "Saturday Night Live". He co-wrote the popular "slobs vs. snobs" comedy, "Caddyshack" (1980) with director Harold Ramis and Douglas Kenney. Doyle-Murray also acted in the film, as he would in a number of features associated with the SNL/SCTV/National Lampoon confederation including "National Lampoon's Vacation" (1983), "Sixteen Candles" (1984), Bill Murray's dramatic vehicle, "Razor's Edge" (1984), "Wayne's World" (1992) and "Groundhog Day" (1993). In a marked change of pace, Doyle-Murray played Jack Ruby in Oliver Stone's "J.F.K." (1991).

In recent years, Doyle-Murray has established himself as supporting actor in TV sitcoms. He was quietly charismatic as John "Mac" McKinney, the righthand man of a Nixonian cable mogul on "Good Sports" (CBS, 1991). Doyle-Murray was amusingly cranky as Chris Elliot's landlord during the second season of "Get a Life!" (Fox, 1991-92). He was surprisingly dignified as a veteran cop on "Bakersfield P. D." (Fox, 1993-94) a superior police spoof.