Carl/Appearances

Season 1

 * Untalking Tom
 * Future Tron (non-speaking)
 * CEO in Trouble
 * The Perfect Day
 * Funny Robot Galileo
 * A Secret Worth Keeping: Part One (mentioned)
 * A Secret Worth Keeping: Part Two
 * A Secret Worth Keeping: Part Three
 * A Secret Worth Keeping

Season 2

 * Forgotten Kiss
 * The Backup Genius
 * The Sabotage
 * Vote for Tom!
 * Happy Town
 * Email Fail
 * Babysitter Tom (non-speaking)
 * Saving Santa
 * Landlord In Love
 * Fishy Business

Season 3

 * Mission: Delete
 * Treasure Hunt
 * The Lost Scouts (mentioned)
 * The Sixth Friend
 * The Other Tom
 * Glitch Apocalypse

Season 4

 * Space Rescue