Mark Taylor

Mark Taylor is an American actor and director, having played Dr. Niles in the film, Innerspace (co-starring Robert Picardo), and provided the voices of Firestorm in Hanna-Barbera's Superfriends series (co-starring Adam West and Casey Kasem) and Jimmy Olsen in Ruby-Spears' Superman (also starring Ginny McSwain and Michael Bell).

A Pup Named Scooby-Doo
Grouped under "Voices" for every episode for season 1.