Ten-year-old Coop Burtonburger's life takes a turn for the worse when his little sister, Millie, brings home a mysterious stray cat who, in reality, is an evil cybernetic alien in disguise. To make matters worse, neither his family nor anyone else believes him, except for his best friend, Dennis. Now, Coop risks his life every day as he attempts to foil the cat's diabolical schemes and prove to the world that the family pet is an evil mastermind.
SeasonsSeen 0 of 131 episodes
- 52 episodes · 2008Mark season watched
- 52 episodes · 2010Mark season watched
- 27 episodes · 2008Mark season watched
| Actor | Role |
|---|---|
 Brian Drummond(voice) | (voice) |
 Kathleen Barr(voice) | (voice) |
 Trevor Devall(voice) | (voice) |
 Grey DeLisle(voice) | (voice) |
 Tara Strong(voice) | (voice) |
 Kath Soucie(voice) | (voice) |
 Carter Jenkins(voice) | (voice) |
 Rob Paulsen(voice) | (voice) |
 Cathy Weseluck(voice) | (voice) |
 Erin MatthewsCoop Burtonburger (voice) | Coop Burtonburger (voice) |
 Linda Sorensen(voice) | (voice) |
 Tabitha St. Germain(voice) | (voice) |
 Tom Kane(voice) | (voice) |
 Tress MacNeille(voice) | (voice) |
 Kevin Michael Richardson(voice) | (voice) |
 Frank Welker(voice) | (voice) |
 Sean Marquette(voice) | (voice) |
 Pamela Adlon(voice) | (voice) |
 Jeff Bennett(voice) | (voice) |
 Tom Kenny(voice) | (voice) |
 Billy West(voice) | (voice) |
 Nancy Cartwright(voice) | (voice) |
 Nika Futterman(voice) | (voice) |
 Vincent Tong(voice) | (voice) |
 Chiara Zanni(voice) | (voice) |
 Christopher Gaze(voice) | (voice) |