Shirley McLoon

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Shirley McLoon
Shirley McLoon
Vital Statistics
Gender Female
Hair color Black
Other Statistics
Occupation Agent
Affiliation Treasury Department
Production Details
First appearance APNSD: A Bicycle Built for Boo!
Played by Isabel Sanford

Shirley McLoon is an agent of the Treasury Department. She pretended to be a psychic medium while she was undercover.

Physical appearance

She is an African-American female with short black hair.


Takes her job as a federal officer for the Treasury Department very seriously. She'll stop at nothing until she's captured any counterfeiter she tries to bust down, even going undercover.


A Pup Named Scooby-Doo

Season one

She was put in a cell of the Furgeson Estate by the Ghost (the disguise of Mr. Conrad) when she went looking for it. She was also considered by the gang as a suspect for the crime. Finally, when Mr. Conrad was unmasked, she arrested him. (A Bicycle Built for Boo!)


  • Shirley's name is a play on the famous New Age aficionado Shirley MacLaine.
  • Series producer/developer Tom Ruegger eventually later reused the name for Shirley "the Loon" McLoon, one of the characters on Tiny Toon Adventures (which he was also a producer on), whom was also into psychic powers and fortune-telling.


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