| Description | Character |
| ------ The Main Characters ------ | |
| The protagonist. 'Yabba-dabba doo!' | |
| The protagonist's wife | |
| The protagonist's best friend | |
| The protagonists' wife's best friend | |
| The Flintstones' daughter | |
| The Flintstones' friends' strong adopted son | |
| The Flintstones' pet dinosaur, who barks like a dog | |
| The Flintstones' pet saber toothed cat | |
| The Flintstones' neighbours' pet Hopparoo | |
| Alien exiled to Earth who helps 'dum-dums' | |
| ---- The Rest Are Alphabetical ---- | |
| Sells the protagonist a 'hot' piano | |
| Owns a bus company the protagonist works for | |
| Millionaire cop TV star of 'Smile, You're On My Favorite Crime' | |
| Whale | |
| TV star of takeoff of 'Alfred Hitchcock Presents' | |
| Movie star hired to watch the Flintstones' baby | |
| Delivery boy who outsmarts the protagonist every time | |
| Man with very bad luck | |
| Jewel thief | |
| Arabian prince | |
| Cowboy who comes to the rescue of the protagonist | |
| Bookie who bets on dinosaur races | |
| Mob Boss | |
| Bowling house champion who the protagonist defeats | |
| Rodeo rider, the protagonist's wife's old sweetheart | |
| A smart bear's buddy, appeared on one episode | |
| Owns a billiard parlor | |
| Accidentally sent to the Flintstones' daughter's birthday party | |
| Owns the HMS Bountystone | |
| Grandson of the Flintstones | |
| Diamond Thief | |
| Insurance company owner who the protagonist works for | |
| Owns a ranch | |
| Strange next-door neighbor who live in Tombstone Manor | |
| One time neighbor of the Flintstones, with a magical wife | |
| Detective spying on the protagonist to see if he is fooling around | |
| Dodo bird pet of the Flintstones | |
| Aids in the birth of the Flintstones' daughter | |