Ronnie Schell

Ronnie Schell, born Ronald Ralph Schell Schell in Richmond, California, on December 23, 1931, is an American actor, stand-up comedian and cartoon voice actor (notably Peter Puck). Early in his career he appeared as himself as a contestant on You Bet Your Life opposite Groucho Marx, demonstrating a comic barrage of jive talk. Description above from the Wikipedia article Ronnie Schell, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Cast

Rover Dangerfield
Eddie (voice)

Toomie: The Hungry Tumor
Dad

Strange Things
Mel (voice) (as Ronny Schell)

The Shaggy D.A.
T.V. Director

Looking for Lenny
Self

Dorf Goes Fishing
DIP Host

Jetsons: The Movie
Rudy 2 (voice)

Scooby-Doo! Meets the Boo Brothers
Freako / Demonstrator Ghost (voice)

Scooby-Doo and the Ghoul School
Colonel Calloway (voice)

The Impostor
Dance Director
Battle of the Planets: The Movie
Jason

The Whiz Kid and the Carnival Caper
Deputy Scruff

How to Beat the High Cost of Living
Bill Pike

Dutch Treat
Lou Winters

Gus
Joe Barnsdale

Perfect People
Dr. Stroud

Love at First Bite
Guy in Elevator

The Strongest Man in the World
Referee

The Candle
Grandpa Joe

The View from the Swing
Man in Diner

Pennies
Mr. Tinker

Ultraman: The Adventure Begins
Combot Model BA666 (Samson)

The Cat from Outer Space
Jake (Voice) / Sgt. Duffy

The Mouseketeers at Walt Disney World
Mr. Brown

Love and Distrust
Mr. Tinker (segment "Pennies")

Revenge of the Red Baron
Lou

The Check is in the Mail...
Dr. Brannigan

Mickey's 50
Self

The Perfect Woman
The Agent
The Anatomy of Vince Guaraldi
Self

The Cowboy Killer
Trucker Harry