Dr. Internet Doctor/Appearances

Season 1

 * Untalking Tom
 * Hank the Millionaire
 * Doc Hank
 * Germinator 2: Zombies (cameo)
 * The Voice Switch (cameo)

Season 2

 * Couples Clash (Part 1)
 * The Cool and the Nerd
 * The Love Ride

Season 3

 * Troubled Couples
 * Tom the Brave (non-speaking cameo)

Season 4

 * The Great Taxi Race (non-speaking cameo)
 * Boyfriend Stealer (cameo)

Season 5

 * Alert! Parents in Town (cameo)
 * The Incredible Super-Fan (cameo)

Talking Tom's Brainfarts

 * The Importance of Washing Hands (flashback)