Ricky Owens (Mr. E)

Mr. E was the anonymous person who helped the new Mystery Incorporated in their earlier mysteries. His alias was a pun of the word "mystery."

He signified his clues' authenticity by marking them with his personal wax seal — the letter E. He was later revealed to be Ricky Owens, a member of the original Mystery Incorporated who disappeared in the Crystal Cove Caves.