Agent 008

Agent 008 is a mysterious special agent.

Scooby-Doo and the Mystery of the Rider Without a Head
When it seemed that Mystery Inc. wouldn't be able to solve the mystery of the Headless Horseman, he suddenly said he would have to call on Agent 008 to sort things out.

Notes/trivia

 * Agent 008 is a parody of Agent 007, the codename for James Bond in the spy film series.