John Stephenson

John Stephenson (August 9th, 1923, Kenosha, Wisconsin) is an American voice actor who has voiced additional characters throughout the Scooby-Doo franchise. He has also voiced multiple other characters in Hanna-Barbera productions. He was the voice of Mr. Peevly on Help, It's the Hair Bear Bunch, Luke and Blubber Bear on Wacky Races, Doggie Daddy, Fancy-Fancy on Top Cat, Mr. Finkerton on Inch High, Private Eye, Chief Wiggins on Dynomutt, Professor X on Pryde of the X-Men, Beef Bonk on Galaxy High School and General Flaggs in G.I. Joe. He also voiced four characters on The Transformers: Huffer, Windchanger, Thundercracker and Alpha Trion.

Nonetheless, he is most famous as the voice of Mr. Slate, Fred Flintstone's bad tempered boss in The Flintstones. He has been voicing Mr. Slate from 1960-present.

Scooby-Doo, Where Are You!

 * "Big Bob" Oakley
 * Dracula
 * Frankenstein
 * Wolfman
 * C.L. Magnus
 * Redbeard's Ghost
 * C.L. Magnus's butler
 * Coast Guard (Go Away Ghost Ship)
 * Dr. Jekyll
 * Ghost of Mr. Hyde
 * Professor Wayne
 * Caveman
 * The Creeper

The Scooby-Doo Show

 * Mr. Daughtery
 * Jim Rivets
 * Specter of Ebenezer Crabbe
 * Mr. Clive
 * Mr. Grumper
 * Ghost of Benedict Arnold
 * Ghost of William Demont
 * Ghost of Major Andre
 * Government Agent (The Spirits of '76)
 * Dr. Grimsley
 * Skeleton Men
 * Dr. Rixon
 * Avery Queen
 * Sammy the Shrimp
 * Strawberry Technicolor Phantom
 * Vanilla Technicolor Phantom
 * Chocolate Technicolor Phantom
 * Captain Eddy
 * Ghost of Juan Carlos
 * Elwood Crane
 * Headless Horseman
 * 10,000 Volt Ghost
 * Mayor Dudley
 * Mr. Hansen
 * Viking Ghost
 * Sheriff Swenson
 * Mr. Bohanon
 * Aztec Statue Monster
 * Zarko
 * Ghost of Merlin
 * Rod Kennedy
 * Jaguaro
 * Louise
 * Professor Poisson
 * McGil
 * Ghost of Captain Pescado
 * Octopus Monster
 * Lieutenant (The No-Face Zombie Chase Case)
 * Mr. Dilly
 * Gorilla
 * Mr. Wells
 * Demon Shark
 * Jim Moss
 * Ghost of Milo Booth
 * Mr. Prantis
 * Buck Bender
 * Rambling Ghost
 * Roger
 * Mamba Wamba
 * Uncle Leon
 * Sam Crenshaw
 * Albert Tross
 * Underground Demon
 * Uncle Matt
 * Professor Von Klamp
 * Future Monster
 * Professor Salari

The New Scooby-Doo Movies

 * Mr. Crink
 * Sterling Smith
 * Simon Shakey
 * Siegfried
 * Ghost of the Red Baron
 * Lorne Chumley
 * Milo Meekly
 * Winslow
 * Selby
 * Morgan
 * Green Glob 2
 * Mr. Teller
 * Hans Etherwise
 * Vernon Crow
 * Creech
 * Mr. Hyde
 * Bear (Sandy Duncan's Jekyll and Hyde)
 * Scorpions owner
 * Detective Storm
 * Lucas
 * Alberto
 * The Great Misto
 * Johnny Briggs
 * Mr. Thayer
 * Zalia Z. Fairchild

Scooby-Doo! Abracadabra-Doo

 * The Sheriff