Baby Looney Tunes

• Baby Bugs – (voiced by Sam Vincent) He is indicated to be the oldest of the babies, which makes him their official leader. His leadership however does tend to cause tension, especially with Lola and Daffy. Bugs sometimes gets teased for loving Lola and gets really annoyed by Daffy's name-calling.
• Baby Tweety – (voiced by Sam Vincent) A yellow canary. The youngest and the smallest of the gang. Depicted as the brainstormer, because he comes up with ideas when the others are fresh out of them. He is very sensitive about his small frame (which he must overcome in most episodes centered around him) and curious about what he encounters.
• Baby Daffy – (voiced by Sam Vincent) He is second in the lead after Bugs. Often, he always wants his personal gain. When he does not get what he wants he believes he is treated unfairly, not noticing the inconvenience inflicted on the others. But half the time he does have good intentions. He is known to have a fear of robots. Daffy is jealous of Bugs. He seems to say "Wahoo" a lot very similar to his earlier shorts. Quite frequently he has made fun of Bugs by making fun of his name and other things.
• Baby Lola – (voiced by Britt McKillip) Sometimes, she takes charge. Her independence is greater than the others and she has more boyish tendencies than the other girls.
• Baby Taz – (voiced by Ian James Corlett) As much as Taz is well behaved, he often mistakes various objects for food and sometimes breaks things with his spin. He has a sense of fun that exceeds all the others. He is also more cheeky, crying when things go wrong or when Daffy steals from him.
• Baby Sylvester – (voiced by Terry Klassen) A cute Tuxedo cat. At times, he is shy and anxious, and he makes an easy target for Daffy to hoax and trade with. He is rarely seen using his claws. He likes to get attention from Granny more than the others. Sylvester is afraid of lightning and he hates pickles.
• Baby Melissa – (voiced by Janyse Jaud) She often sticks with Petunia; the two were abruptly added to the main cast early into the second season. She is a highly practical and creative sort with a friendly personality, but at times she can be a control freak and get on the others' nerves.
• Baby Petunia – (voiced by Chiara Zanni) She often sticks with Melissa; the two were abruptly added to the main cast early into the second season. She is more intelligent than the other babies with insatiable curiosity. In the episode "Let Harder They Fall", she is no longer wearing diapers anymore like other babies but by the time Petunia wears frilly yellow training panties with a white bow in the middle and "Petunia the Piggy Bank", she learned to save money.
• Granny – (voiced by June Foray) She offers professional love and care for the babies to keep them happy. Being the only adult in their lives, the babies are fascinated and inspired by her intelligence, wisdom and ability to overcome problems when they arise with ease. Granny is strict, practical, and old fashioned.
• Floyd Minton – (voiced by Brian Drummond) Granny's nephew. Sometimes he is overwhelmed by the responsibility he takes on the babies, but he is determined never to let Granny down. He often keeps an eye on one of the individual babies in each episode during Season 4.

Several other Looney Tunes characters have made cameos over the course of the show's run, mainly as guest spots or during songs. Baby Prissy, Baby Marc Antony, and Baby Penelope appear in the songs, “Down By The Cage”, “Paws and Feathers”, and “Vive Le Pew", respectively. Baby Marvin (Sam Vincent), Baby Elmer (Brian Drummond), Baby Instant Martians, Baby Gossamer, and Baby Foghorn (Scott McNeil) appear in “War Of The Weirds”, “Bully For Bugs”, “A Mid-Autumn Night’s Scream”, “Stop and Smell Up the Flowers“, and "Cock A Doodle Do It!", respectively. Baby Wile E. and Baby Road Runner appear in multiple songs, as do Baby Pepe, Baby Porky, and Baby Sam.

• Baby Marvin- (Voiced by Samuel Vicent) A alien toddler, coming from Mars. He appear in War of The Weirds. He's an quiet and meek, but friendly martian, who was visiting for a while. The babies regarded him creepy and hesitated in befriend him, but Taz was the only one who was kind to him. The babies eventually realize their error, and receive him as a friend, and he finally speaks to them.

• Elmer Fudd- (Voiced by Brian Drummond) Appears as a baby in the songs, and as an older toddler in A Bully for Bugs. In the episode, he was a bully who was mean to Bugs and stole his candy, and was bullying the other babies too. In the end, he admits that he felt alone and actually wanted to be friends with them. The babies soon forgave him and accepted him as a friend.

• Baby Foghorn Leghorn- (Voiced by Scott McNeil) Appears in Cock a Doddle Do It. He's a young, somewhat insecure, farm rooster, who's picked out by the older roosters. The other babies visiting, helps him to find his guts and win up the other roorsters' respect. At the end, he faces a dog with the help of his new friends, and finally becomes a respected member of the corral.

• Baby Pepe- Appears first in New Cat in Town as a baby, and later in Stop and Smell Up the Flowers as an older toddler. In his first episode, all mistook him for a cat and adopted him. Sylvester was initially jealous of him, but got over it when he heard he says his name as his first word. In his second appearance, he is strolling for the flowers, but his smell was a issue. The other babies are initially putted off by this, but they truly accepts him for who he is in the end. He is revealed to be friends with Baby Gossamer.