This thread is about notable stars of prime-time programs that were also heard in various Saturday morning cartoons, over the years. I might as well add as a footnote that some Saturday morning cartoons that feature some of the voice-over cast of their prime-time counterparts, if not all, including The New Adventures of Gilligan, The Dukes, Fonz & The Happy Days Gang, Laverne & Shirley in the Army, Mork & Mindy, The Brady Kids, Emergency + 4, It's Punky Brewster, etc.- well, you get that idea. Now, getting back to the topic of the thread, I'm going to start with Jim Henson's Muppet Babies- Howie Mandel was the first Baby Animal, and was co-starring on NBC's St. Elsewhere, before Dave Coulier of Full House fame, took over for Howie as Animal in season three. Dave also took over for Lorenzo Music as Peter Venkman for the second season of The Real Ghostbusters, and speaking of that very program, Arsenio Hall, for two years, was Winston Zeddmore. This is my personal favorite, before he was Uncle Phil on Fresh Prince of Bel Air, James Avery was the original voice of the villainous Shredder on Teenage Mutant Ninja Turtles. There's more- Jonathan Winters of Mork & Mindy fame, was Grandpa Smurf, starting in the sixth season of The Smurfs. Don Most of Happy Days fame, as Eric the Cavalier on Dungeons and Dragons and Styles on Teen Wolf. Joan Van Ark of Knots Landing fame, portrayed the title role in DePatie-Freleng's incarnation of Marvel Comics' Spider-Woman in 1979. Ron Palillo, from Welcome Back, Kotter, in the title role of Ruby-Spears' Rubik, the Amazing Cube. William Conrad, from Cannon and Jake & the Fatman, in the title role of Filmation's The Lone Ranger as well as being the narrator of Rocky & Bullwinkle. I think you pretty much have the idea of prime-time celebrities in Saturday morning cartoons, so without delay, start chiming in, as long as it's relevant to the topic of the thread.