|Segment||Rita and Runt|
|First Episode||Nighty-Night Toon/When Rita Met Runt|
|Voice Actor||Frank Welker|
|Catchphrases|| "Definitely..." |
"You're a good dog, Rita. Definitely a good dog."
Runt is an unintelligent, happy-go-lucky dog and is Rita's best friend. He believes that Rita is stray dog like him. He is voiced by Frank Welker doing an impression of Dustin Hoffman's character from Rain Man.
Runt is extremely dimwitted, believing from the time Rita met him that she was another dog. This is largely to Rita's advantage, since he would behave hostilely towards any cats. Despite his simple mind, he has great affection for Rita, letting her insults and disdain slide off of him, and expressing worry (usually) when she is in danger. He even went to the point of biting a man who was trying to cook Rita, and grabbing her by the scruff to safety when he assumes they are in danger (although usually incorrectly, to Rita's annoyance). He is also, in his rare moments of coherency, surprisingly attached to Rita, but when she is about to leave on a train to a nice home and he is left behind, he seems sad, but still wishes her a nice life. However, Rita quickly jumps off the train, much to his surprise and delight.
|Episode 7||"Piano Rag / When Rita Met Runt"|
"No Pain, No Painting / Les Miseranimals"
|Episode 17||"Roll Over, Beethoven / The Cat and the Fiddle"|
|Episode 25||"Hercule Yakko / Home on De-Nile / A Midsummer Night's Dream"|
|Episode 29||"Draculee, Draculaa / Phranken-Runt"== ==|
|Episode 31||"O Silly Mio / Puttin' on the Blitz / The Great Wakkorotti: The Summer Concert"|
|Episode 35||"Very Special Opening / In the Garden of Mindy / No Place 'Like 'Homeless / Katie Ka-Boo / Baghdad Cafe"|
|Episode 39||"Smitten With Kittens / Alas Poor Skullhead / White Gloves"|
|Episode 43||"Of Nice and Men / What a Dump / Survey Ladies"|
|Episode 44||"Useless Facts / The Senses / The World Can Wait / Kiki's Kitten"|
|Episode 48||"Mobster Mash / Lake Titicaca / Icebreakers"|
|Episode 57||"Of Course, You Know This Means Warners / Up a Tree / Wakko's Gizmo"|
|Episode 62||"Scare Happy Slappy / Witch One / MacBeth"|