- Emilio Insolera
- Tom Clerc
- Benjamin Bahan
- Hugh Denison
- Hiroshi Vava
- Tatsumi Fuwa
- Danny Gong
- Ken Wong
- Carola Insolera
- Kate Massieu
- Humberto Insolera
- Jux Clerc
- Susan Mather
- Miss D
- Jesse Thomas
- Oliver Veditz
- Naoki Harada
- Inspector Shimamoto Yasunori
- Iseki Reida
- Kid Tatsumi Fuwa
- M. Cristina Drovetta Insolera
- Linda E. Clerc
- Hitomi Sasaki
- Tatsumi Fuwa's mother
- Irina Arsentieva
- Carole Williamson
- Yelena Abramov
- QIA agent
- Anthony Adamo
- QIA agent
- Juliana Bahan
- Kid Kate Massieu
- Carey Ballard
- Kid Tom Clerc
- Summer Crider
- QIA agent
- David Day
- QIA agent
- Vanessa Faraone
- Giulia Clerc
- Armando Farruya
- QIA agent
- Darren Fudenske
- QIA agent
- Ana Insolera
- (as Delphine Insolera)
- Christine Sun Kim
- QIA agent
- Jason Lamberton
- QIA agent
- Jon Lamberton
- QIA agent
- Ben Moore
- Brian Bergman
- Benjamin Moore
- Brian Bergman
- Myrsos Paletta
- Baby Tom Clerc
- George Perez
- QIA agent
- Lauren Ridloff
- QIA agent
- David Rivera
- QIA agent
- Jeremy Lee Stone
- (as Jeremy Lee Sanchez)
- Warren Trofimenhoff
- Tatsumi Fuwa's sister
- Matthew Vita
- QIA agent
