- For his uncle who owns Decade Records, see Mr. Decade.
Ace Decade is the nephew of the owner of a music studio.
Physical appearance[]
Ace is an adult male, with dark brown hair, and wears glasses. He wears a brown suit over a tan shirt and an orange necktie.
Personality[]
Personality wise, Ace Decade is very much driven by greed. Ace Decade is disloyal, sneaky, jealous and conniving, not to mention duplicitous! He appeared meek and mild-mannered; this is but a façade.
History[]
The Scooby-Doo Show[]
Season three[]
Ace unmasked.
Decade was smuggling records out of his own uncle’s studio in trash cans in order to sell them for personal profit. When a music writer, Tony Synes, discovered his actions, Ace disguised himself as the Phantom and kidnapped Synes, locking him in a cupboard in the cafeteria.
Decade attempted to mislead the gang whilst they attempted to solve the mystery, leading them to a tape recorder wired to the intercom in his office in order to give the appearance he was being framed. However, Synes left a clue, which was Decade's ultimate downfall; his last piece of music spelled the culprit's name in the first three bars: ACE DEC ADE.
Trick or Treat Scooby-Doo![]
Ace was among the prisoners at Coolsville Penitentiary when the gang went there to visit Coco Diablo. He was later accidently freed along with all the other inmates, but was recaptured by the gang using Coco's costumes and sent back to prison.