Following graduation from Padua Franciscan High School and Ohio University, Mackall secured a trip to Los Angeles by winning a 1986 HBO comedy contest, prompting his relocation to pursue comedy while working as a copywriter. He began voice-over work in 1989, voicing national commercials for General Mills, CompUSA and Froot Loops, and soon became the announcer for NBC’s Must See TV as well as for T…
