John Stephenson was 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.
Stephenson passed away on December 29, 2012.
|101. What A Night For A Knight||Black Knight|
|106. What the Hex Going On?|| Stuart Wetherby/|
Ghost of Elias Kingston
|109. The Backstage Rage|| Viking puppet|
|110. Bedlam in the Big Top||Samson the Strongman|
|111. A Gaggle of Galloping Ghosts|| Big Bob Oakley/|
Wolfman/Carlotta the Gypsy (as Big Bob Oakley)
|112. Scooby Doo and a Mummy, Too||Mummy of Ankha|
|113. Which Witch is Which?||Sheriff|
|114. Go Away Ghost Ship|| Butler|
|201. Nowhere to Hyde|| Dr. Jekyll/|
Ghost of Mr. Hyde
|203. Scooby's Night With A Frozen Fright|| Professor Wayne/|
|204. Jeepers, It's The Creeper||The Creeper|
|206. A Tiki Scare Is No Fair||Mano Tiki Tia|
|102(a). Scooby's Peep-Hole Pandemonium||Franklin Stein|
|109. A Night Louse at the White House||President of the United States|
|Various episodes||Additional voices|
|113. Horror-Scope Scoob||Boris Kreepoff|
|114. The Unnatural||Bob Taylor|
|212. Uncle Scooby and Antarctica||Zelig the Zookeeper|