Mr. Fixit is a repair fox who boasts that he can fix anything, but does not often the show this ability. He once attempted to fix a tire on Marvin Mouse's car but it deflates. He also fixed Mrs. Cat's vacuum cleaner but it ran on the ceiling instead. He even fixed Hilda Hippo's toaster but it turned off and the toast went flying and landing on the floor. He also fixed Freddie Fox's tricycle horn, but it went "cuckoo" like Grandma Bear's cuckoo clock instead, Fireman Ralph's siren, but it said "mama" like Lily Bunny's doll instead, Grandma Bear's cuckoo clock, but it went "honk honk" like Freddie's tricycle horn instead, and Lily Bunny's doll, but it wail like the siren instead. He also fixed other things, but they went different sounds instead.
He is voiced by Bruce Bayley Johnson in Richard Scarry's Best Silly Stories and Songs Video Ever.
In The Busy World of Richard Scarry he was voiced by Peter Wildman.