A

• Ali (The Curse of Tootincandy's Tomb)
• Ambassador of Klopstokia
• Archambault
• Theodore Avocados

B

• Randal Bakko
• Balton brother (brown hair)
• Balton brother (red hair)
• Balton Brothers
• B.B. Bell
• Major Berch
• Bertha
• Ben Bing
• Daphne Blake impostor (DC's Double Trouble)
• Bruno the Cable Car Operator
• Mr. Buckston

C

• Dr. Carlin
• Mr. Carp
• Mr. Carswell
• Cat Lady (The Incredible Cat Lady Caper)
• Catfish Burglar
• Catfish Burglar accomplice
• Chief (Yabba's Rustle Hustle)
• Chinese Food Factory burglar
• Mr. Clive
• Clock shop owner
• Mr. Conrad
• Jonathan Crabtree
• Jamie Craigmore
• Elwood Crane
• Cosgoode Creeps
• Mr. Crink
• Monty Cristo
• Captain Cutler

D

• Milo Damp
• Dandy Highwayman
• Darcy
• First Mate Defarge
• Mr. Dilly
• Dimwittie
• Velma Dinkley impostor (DC's Double Trouble)
• Whitney Doubleday
• Duke (Charlton Comics)

E

• Captain Eddy
• Brant Embers

F

• Mr. Feep
• Murray Felton
• Female Spy

F cont.

• Harley Finster
• Mr. Forester
• Four Eyes
• Grey Fox
• Ned Fussbuster

G

• Gertie (Charlton Comics)
• Mr. Gordon
• Simon Grady
• Mr. Greenfield
• Dr. Grimsley
• Howard Gruger
• Chef Gustav

H

• Mr. Hansen
• Mrs. Higgins
• Chuck Hunt
• Mr. Hyde (Everyone Hyde!)

J

• Dr. Jekyll
• Jerry
• Jewel thief (Monster Museum)
• Jink
• Fred Jones impostor (DC's Double Trouble)

K

• Orson Kane
• Katerina Kobald
• Crash Kovalchek

L

• Dr. LaRue
• Laser band thief
• Lee Shiu Shian

M

• Mr. Marino
• Mario
• Masked Manx
• Mr. McFinn
• Mr. McGil
• Wendel McWendel
• Fabian Menkle
• Professor Mikos
• Irina Molotova
• Morgan the Magician
• Muggsy (Charlton Comics)
• Harriet Mullins's associate
• Nanette Musette
• Mystery Inc. impostors (DC's Double Trouble)

N

• Dr. Najib

O

• Connor O'Flaherty
• Sheela O'Flaherty
• Traveler O'Flaherty
• Big Bob Oakley
• Omar and Khyyam

O cont.

• Dewey Ottoman

P

• Nick Papas
• Crocker Pitt

R

• Jack Rabble
• Ratfield
• Rhino (Ghastly Ghost Town)
• Ringmaster Rick
• Jim Rivets
• Roberto
• Shaggy Rogers impostor (DC's Double Trouble)
• Ken Rogers
• Rollie the Barrel Man Rodeo Clown
• Mr. Ryan

S

• Rudy "Slippery Hands" Sable
• Sammy the Shrimp
• Science Ghoul
• John Simms
• Barbara Simone
• Chin Wong Sing
• Sterling Smith
• Wylie Smithens
• Red Sparks
• Mr. Stapleton
• Roger Stevens
• Elina Stonehack
• Professor Stonehack
• Mr. Stoner
• Byron Stout

T

• Tessie
• Vincent Thorne
• Tiny
• Everett T. Trusdale

V

• Mrs. Van Loon
• Vendetta
• Professor Von Klamp

W

• Wanda the Wise
• Mr. Wells
• Wolf Whippet
• Mr. Wickles
• Mr. Wiley
• Mr. Wilit
• Aggie Wilkins
• Willie the Weasel
• Nitro Wisinski
• Woodruff

Z

• Zarko