- Ken Kai-Cheong Wong
- Sherlock Holmes
- Monte Kai-Him Cho
- Dr. Watson
- Louis Siu Cheung Yuen
- Gordon 'Gorilla' Riller
- Pasu Wai-Tak Leung
- Carlson Fox
- Toe Yuen
- Skinny Monkey
- Kam Tong Stephen Au
- Mack
- Vivien Wai-Wan Lau
- Katie
- Ming-Wah Koo
- Scarface
- Leander Lau
- Little Rabbit
- Joyce Hoi-Ting Chan
- Alice
- Jon Allen
- Mob Wolf
- Edward Bosco
- Gibson
- Brook Chalmers
- Jail Doctor
- Amber Connor
- Orphans / Katie's Friend (voice)
- Robbie Daymond
- Sherlock Holmes
- David Errigo Jr.
- Watson
- Lizzie Freeman
- Alice
- Jason Marnocha
- Scarface
- Brock Powell
- Mob Highland Cow
- Bill Rogers
- Boris
- Abby Trott
- Little Rabbit
