John Stephenson

John Winfield Stephenson was an American voice actor. He provided many voices for the Hanna-Barbera company, most notably as Fred Flintstone's boss, Mr. Slate. He was also the voice of Doggie Daddy in many later appearances.

Stephenson died of Alzheimer's disease on May 15, 2015, at the age of 91.

20th century

 * The Flintstones (1960-1966)
 * Mr. Slate
 * Top Cat (1961-1962)
 * Fancy Fancy
 * The Peter Potamus Show (1964-1966)
 * Colonel Fuzzby
 * Jonny Quest (1964–1965)
 * Doctor Benton Quest
 * The Secret Squirrel Show (1965)
 * Chief Winchley
 * Space Ghost & Dino Boy
 * The Man Called Flintstone (1966)
 * Vet
 * Airport clerk
 * Frankenstein Jr. and the Impossibles (1966-1968)
 * Professor Conroy
 * The Abbott & Costello Cartoon Show (1967-1968)
 * Moby Dick and Mighty Mightor (1967-1969)
 * Pondo
 * Tog
 * Ork
 * Bello
 * Birdman and the Galaxy Trio (1967-1969)
 * X, the Eliminator
 * Cumulus
 * Reducto
 * Arabian Knights (1968-1969)
 * Farrik
 * Bakaar
 * The Adventures of Gulliver (1968-1969)
 * Captain John Leech
 * Thomas Gulliver
 * King Pomp
 * Wacky Races (1968-1969)
 * Lazy Luke
 * Blubber Bear
 * Scooby-Doo, Where Are You! (1969-1970)
 * Where's Huddles? (1970)
 * Mr. Cool ("The Old Swimming Hole", 1970)
 * Slippery Charlie ("To Catch a Thief", 1970)
 * Garbage man ("A Sticky Affair", 1970)
 * Doctor Kornfelo ("One Man's Family", 1970)
 * Josie and the Pussycats (1970-1971)
 * Captain Nemo ("The Nemo's a No No Affair", 1970)
 * Coast Guard officer ("The Nemo's a No No Affair", 1970)
 * Harlem Globetrotters (1970-1971)
 * Doctor ("The Great Geese Goof-Up", 1970)
 * Zippo the Great ("The Great Geese Goof-Up", 1970)
 * Doctor Bella ("The Great Geese Goof-Up", 1970)
 * Referee ("The Great Geese Goof-Up", 1970)
 * The Pebbles and Bamm-Bamm Show (1971-1972)
 * Mr. Slate
 * Help!... It's the Hair Bear Bunch! (1971-1972)
 * Mr. Peevly
 * Slicks
 * Zeed
 * The Funky Phantom (1971-1972)
 * Mr. Warnock ("We Saw a Sea Serpent", 1971)
 * Sealab 2020 (1972)
 * Doctor Michael Murphy
 * The Adventures of Robin Hoodnik (1972)
 * Sheriff of Nottingham
 * Carbuncle
 * The Thanksgiving That Almost Wasn't (1972)
 * Mr. Cooke
 * A Christmas Story (1972)
 * Polecat
 * Mailman
 * First responding dog
 * Bulldog
 * The New Scooby-Doo Movies (1972-1973)
 * Yogi's Ark Lark (1972)
 * Doggie Daddy
 * Benny the Ball
 * Hardy Har Har
 * Charlotte's Web (1973)
 * John Arable
 * Parking officer
 * Marching band leader
 * Yogi's Gang (1973)
 * Doggie Daddy
 * The Addams Family (1973)
 * Cousin Itt
 * Charlie ("The Addams Family in New York", 1973)
 * Ripoff ("The Addams Family in New York", 1973)
 * Super Friends (1973)
 * Colonel Wilcox
 * Sir Cedric Cedric ("The Power Pirate", 1973)
 * Anthro ("The Power Pirate", 1973)
 * Inch High, Private Eye (1973)
 * Mr. Finkerton
 * Spumoni the Great
 * Jeannie (1973)
 * These Are the Days (1974-1975)
 * Logan ("The Fire Brigade", 1974)
 * Mr. Jenkins ("The Fire Brigade", 1974)
 * The Tom & Jerry Show (1975)
 * Tom Cat
 * Jerry Mouse
 * Spike
 * The Mumbly Cartoon Show (1976)
 * Chief Shnooker
 * The Scooby-Doo Show (1976-1978)
 * Clue Club (1976)
 * Sheriff Bagley
 * The Skatebirds (1977-1978)
 * Captain Caveman and the Teen Angels (1977-1980)
 * Laff-A-Lympics (1977-1978)
 * Doggie Daddy
 * Mildew Wolf
 * Dread Baron
 * Great Fondoo
 * CB Bears (1977)
 * Hunter Hunter ("The Blue Kangaroo")
 * Abernathy ("The Fright Farm")
 * Bart Karney ("Bad Medicine")
 * Lee Stroganoff ("Pain in the Brain")
 * A Flintstone Family Christmas (1977)
 * Mr. Slate
 * The Flintstones: Little Big League (1978)
 * Mr. Slate
 * Galaxy Goof-Ups (1978)
 * Captain Snerdley
 * General Blowhard
 * Casper and the Angels (1979)
 * Harry Scary
 * The Thing (1979)
 * Professor Harkness
 * The Flintstones Meet Rockula and Frankenstone (1979)
 * Count Rockula
 * Police Chief
 * Gulliver's Travels (1979)
 * Casper's First Christmas (1979)
 * Doggie Daddy
 * Harry Scary
 * The Flintstone Comedy Show (1980-1982)
 * Mr. Slate
 * Yogi's First Christmas (1980)
 * Doggie Daddy
 * Mr. Dingwell
 * The Kwicky Koala Show (1981)
 * Wilford Wolf
 * Laverne & Shirley (1981-1982)
 * Additional voices
 * The Smurfs
 * Additional voices
 * Amigo and Friends (1982)
 * Narrator (voice only)
 * Yogi Bear's All-Star Comedy Christmas Caper (1982)
 * Doggie Daddy
 * Butler
 * Announcer
 * The New Scooby and Scrappy-Doo Show (1983)
 * The New Scooby-Doo Mysteries (1984)
 * The Jetsons
 * Jeffrey ("Elroy Meets Orbitty," 1985)
 * Inspector ("Wedding Bells for Rosey," 1987)
 * Robot gang leader ("Wedding Bells for Rosey," 1987)
 * Commissioner ("Wedding Bells for Rosey," 1987)
 * Yogi's Treasure Hunt (1985-1988)
 * Doggie Daddy
 * The 13 Ghosts of Scooby-Doo
 * Boris Kreepoff ("Horror-Scope Scoob," 1985)
 * Freddie Cadaver ("Horror-Scope Scoob," 1985)
 * Yogi Bear and the Magical Flight of the Spruce Goose (1987)
 * Doggie Daddy
 * Pelican
 * Top Cat and the Beverly Hills Cats (1988)
 * Fancy Fancy
 * Officer Dibble
 * Butler
 * Fantastic Max (1988-1990)
 * Additional voices
 * Hanna-Barbera's 50th: A Yabba Dabba Doo Celebration (1989)
 * Doggie Daddy
 * Super Snooper
 * Fender Bender 500 (1990-1991)
 * Doggie Daddy
 * Yo, Yogi! (1991)
 * Doggie Daddy
 * Mr. Myopic ("To Tell the Truth, Forsooth," 1991)
 * I Yabba-Dabba Doo! (1993)
 * Mr. Slate
 * Hollyrock-a-Bye Baby (1993)
 * Mr. Slate
 * A Flintstone Family Christmas (1993)
 * Mr. Slate
 * A Flintstone Christmas Carol (1994)
 * Mr. Slate

21st century

 * The Flintstones: On the Rocks (2001)
 * Mr. Slate
 * What's New, Scooby-Doo?
 * Bob Taylor ("The Unnatural," 2003)
 * Zelig ("Uncle Scooby and Antarctica," 2004)
 * Johnny Bravo
 * Mr. Slate ("A Page Right Out of History," 2004)
 * Scooby-Doo! Abracadabra-Doo (2010)
 * Sheriff