Recurring
Tasmanian Devil/Taz/Poochie (voiced by Jim Cummings) is a Tasmanian devil who is Bugs' pet. In this show, Taz is portrayed as walking on four legs like a real Tasmanian devil and his eyes are bloodshot red (later turned back to yellow after Bugs uses a taming trick he learned from Speedy Gonzales). Initially, Bugs believed Taz to be a dog and kept him as a house pet named Poochie much to Daffy's discomfort. Eventually, Bugs learned the truth and tried to return him to his home in Tasmania only to find out that Taz would rather live with him. When Taz is not causing trouble for Daffy, Taz has occasionally tried to eat Sylvester. In the episode "Ridiculous Journey", Taz spoke for the first time in the series and bonded with Sylvester and Tweety while they evaded Blacque Jacques Shellacque.
Mac (voiced by Rob Paulsen) and Tosh (voiced by Jess Harnell) are two goofy gophers with English accents who run an antique store. They are shown to hate being away from each other.
Pete Puma (voiced by John Kassir) is a dimwitted puma who is one of Daffy Duck's friends and does various jobs around town.
Marvin the Martian (voiced by Eric Bauza) is a Martian who is one of Daffy Duck's friends.
Witch Lezah (voiced by Roz Ryan) is a witch who is Gossamer's mother and lives next door to Bugs Bunny. She is often annoyed by Daffy Duck's antics and is a voice of reason. Witch Lezah is also a hypnotherapist by trade. The character is based on Witch Hazel, with "Lezah" being "Hazel" spelled backwards. Promotional artwork by Jamie Nicholes featured Lezah and Hazel together, with the latter being planned to also appear in the series.
Gossamer (voiced by Kwesi Boakye) is a large orange furry monster who is Witch Lezah's son. In stark contrast to previous characterizations, Gossamer is portrayed as a timid and kind-hearted young boy with a voice to match.
Emma "Granny" Webster (voiced by June Foray, Stephanie Courtney as a young adult) is a practical and old fashioned elderly lady who is one of Bugs Bunny's neighbors. Granny is revealed to have been a spy for the Allies in World War II. In "The Grand Old Duck of York", it is revealed that Granny also teaches piano lessons. This series marks the final time Foray provided the voice of Granny before her death in 2017.
Sylvester and Tweety (voiced by Jeff Bergman) are Granny's pets. Sylvester is a tuxedo cat who is always trying to devour Tweety, but always fails, either due to Tweety outwitting him or Granny catching him and spanking him hard enough to spit Tweety out. Tweety is a cute yellow canary who is frequently targeted by Sylvester. Tweety is revealed to have also been a spy for the Allies in World War II during Granny's youth.
Foghorn Leghorn (voiced by Jeff Bergman) is an eccentric and rich entrepreneur rooster. Foghorn and Daffy get on very well, and are often involved in various schemes. He has mentored Daffy on various occasions, including a biopic where Daffy portrays him and sees himself as a father figure.
Pepé Le Pew (voiced by René Auberjonois in Season 1, Jeff Bergman in Season 2) is a French striped skunk. He's the local casanova. In the episode "Members Only", he works as a wedding planner when he planned Bugs and Lola's wedding at the country club.
Elmer Fudd (voiced by Billy West) who works as the resident TV news anchor and also hosts his own talk show, "Tit for Tat". He is fond of Grilled cheese sandwiches.
Wile E. Coyote and the Road Runner (Road Runner is voiced by Paul Julian via archive recordings, Wile E. is mute) are shown in short computer-animated segments in Season 1. They also make cameos throughout the show, most notably in "Here Comes the Pig", when Bugs gets lost in the desert, he witnesses the Road Runner and Wile E.'s chases, then asks Wile E. for directions to the highway once he fails. Bugs then decides to use Wile E.'s catapult to get back.
