On May 19, 1961, Gallison, under the name Evan McCord, appeared as Billy Boy Baines in the episode "Caper in E Flat" of the ABC-Warner Brothers private detective series, 77 Sunset Strip. In the story line, Billy Boy Baines is a country music singer whose life is being threatened, and his agent, Morton Franklin (John Dehner), hires Rex Randolph (Richard Long) to find out who is trying to kill him.
On April 22, 1962, Gallison, under the name Evan McCord, appeared as Jim Martin, Jr., in the episode "The Youngest" of the ABC-Warner Brothers western series, Lawman. In the story line, "Ma" Martin (Olive Carey) bullies her three sons, particularly the youngest, Jim, Jr., to take revenge on Marshal Troop for the rightful shooting death of their father, who pulled a gun while involved in a crooked poker game. Jim, however, decides to stand up to his mother with the realization that his father provoked the shooting.
Gallison is well known for playing the character of william (Bill) Matthews, Jr., on Another World (1964-1969). Other soap roles have included Tom Edwards on One Life to Live (1969-1971) and Steven Cord on Return to Peyton Place (1972-1974). He is also heard in the You're Under Arrest series, dubbing the voice of Inspector Tokuno.
Gallison married model Connie Sharpe. He married Realtor Melisa Evans in 1980. They are currently separated, and have no children.
