Krypto the Superdog - Season 2 - Eps 18: Catopia
Krypto is hit with a Cat-a-beam that makes him act and think like a cat! It turns out Mechanikat has conquered a planet and turned it into Catopia. Streaky finds the planet and thinks it's "heaven". Ironically, so does Krypto when he is forced to come with Mechanikat and be brainwashed. Streaky must find some way to change Krypto back, or Krypto will think he's a cat for the rest of his life.
About Krypto the Superdog

Title: Krypto the Superdog
First Air Date: 2005-03-25
Last Air Date: 2006-12-15
Status: Ended
Rating: 6.961/10 (from 64 votes)
Language: EN
Seasons: 2
Total Episodes: 75
Network: Cartoon Network
Genres: Animation, Kids
Production Companies: DC, Warner Bros. Animation
Synopsis
Krypto, the Superdog, chronicles the comedic canine adventures of Metropolis' day-saving superdog from Planet Krypton. Krypto jettisons to Earth after traveling across the galaxies as a test-pilot puppy aboard a malfunctioning rocket ship built by Superman's father. Landing astray on unfamiliar terrain, the fully-grown Krypto swiftly seeks out companionship on Earth and flips over Kevin Whitney, a young boy who too longs for friendship. With an amazing array of super hero powers, ranging from heat vision to super strength to flying, Krypto partners with best pal Kevin to fight evil forces that threaten the safety and well-being of the people and animals of Metropolis.
Cast

Sam Vincent
Krypto (voice)

Alberto Ghisi
Kevin (voice)

Brian Drummond
Streaky (voice)

Scott McNeil
Ace the Bat Hound (voice)

Tabitha St. Germain
Andrea (voice)

Nicole Oliver

Michael Dobson

Brian Dobson

Dale Wilson

Ellen Kennedy