With his partner, Jim Jinkins, Campbell helped create the Nickelodeon animated television series Doug, which launched the Nicktoons brand.

He later produced such show business legends as Mickey Rooney, Ann Miller, Carol Channing, and Donald O’Connor in multiple productions of Sugar Babies, which played more than 1,200 performances on Broadway.

[1][2][3] Campbell was also the founder and director of a New York talent management company, helping launch the early careers of Louis CK, Brett Butler, The Higgins Boys and Gruber, and television series including Mystery Science Theater 3000 and Grace Under Fire.

He has been the Executive Producer on more than 300 episodes of award-winning children’s television including 101 Dalmatians: The Series, PB&J Otter, Stanley, JoJo's Circus, The Beginner’s Bible, Pinky Dinky Doo, and many more.

He is also working on several new projects including the video series, HoopDogz,[12] winner of the Parent’s Dove Awards and Holy Fire, a Broadway-bound musical comedy.