In the early days of Williams Street, many characters were recycled for use in their shows from different Hanna-Barbera productions, this practice fell out of use in the late 2000s.
Avenger
Birdman and the Galaxy Trio X the Eliminator (1967)
Birdgirl (Judy Ken Sebben)
Birdman and the Galaxy Trio Birdgirl (1967)
Harvey Birdman
Birdman and the Galaxy Trio X the Eliminator (1967)
Black Widow
Space Ghost The Web (1966)
Daphne Blake
Scooby-Doo, Where Are You! What a Night for a Knight (1969)
Brak
Space Ghost The Lure (1966)
Velma Dinkley
Scooby-Doo, Where Are You! What a Night for a Knight (1969)
Falcon 7 (Phil Ken Sebben)
Birdman and the Galaxy Trio X the Eliminator (1967)
Fred Flintstone
The Flintstones The Flintstone Flyer (1960)
Dr. Stan Freezoid
Birdman and the Galaxy Trio Birdman Versus Dr. Freezoid (1967)
Fred Jones
Scooby-Doo, Where Are You! What a Night for a Knight (1969)
Lokar
Space Ghost Lokar - King of the Killer Locusts (1966)
Mentok the Mindtaker
Birdman and the Galaxy Trio Mentor the Mind Taker (1967)
Metallus
Space Ghost Homing Device (1966)
Judge Hiram Mightor
Moby Dick and Mighty Mightor The Monster Keeper (1967)
The Mind Taker
Space Ghost Jungle Planet (1966)
Moltar
Space Ghost The Ovens of Moltor (1966)
Parko/Owlie
Space Ghost Space Birds (1966)
Myron Reducto
Birdman and the Galaxy Trio Reducto (1967)
Shaggy Rogers
Scooby-Doo, Where Are You! What a Night for a Knight (1969)
Scooby-Doo
Scooby-Doo, Where Are You! What a Night for a Knight (1969)
Sisto
Space Ghost The Lure (1966)
The Sorcerer
Space Ghost The Sorcerer (1966)
Space Ghost
Space Ghost The Heat Thing (1966)
Tansut
Space Ghost Hi-Jackers (1966)
Evelyn Spyro Throckmorton
Birdman and the Galaxy Train Trek (1967)
Vulturo
Birdman and the Galaxy Vulturo, Prince of Darkness (1967)
X the Eliminator
Birdman and the Galaxy X the Eliminator (1967)
Zorak
Space Ghost Zorak (1966)













































































