Cast
John Mulaney as the voice of Chip, a chipmunk and the once-heroic, intelligent, unflappable leader and co-founder of the Rescue Rangers who upheld a strong moral standard and now works as a risk-averse and bitter insurance salesman. Tress MacNeille briefly provides the voice acting for Chip's chipmunk voice (credited as "high-pitch Chip"), reprising her role from the original series. Mason Blomberg voices Chip as a child during the film's prologue.
Andy Samberg as the voice of Dale, a chipmunk and Chip's fun-loving former best friend and co-founder of the Rescue Rangers, who possesses an impulsive mindset and now makes a living with fan convention appearances. Dale's present-day appearance is depicted with photorealistic computer-animation, unlike the cel-shaded animation of his former teammates; this was explained in-universe as "getting CGI surgery," an equivalent to plastic surgery. Corey Burton briefly provides the voice acting for Dale's chipmunk voice (credited as "high-pitch Dale"), reprising his role from the original series. Juliet Donenfeld voices Dale as a child during the film's prologue.
Will Arnett as the voice of Sweet Pete, the toon actor who played Peter Pan, being now a middle aged man with a Bobby Cannavale-esque voice who founded the Valley Gang after being fired due to his age. Archival recordings of Betty Lou Gerson as Cruella de Vil were used for the chimeric Sweet Pete's laughter.
Eric Bana as the voice of Monterey Jack, a cheese-loving Australian mouse and a member of the Rescue Rangers. The character was originally voiced by Peter Cullen in season one of the original series and by Jim Cummings in season two of the original series.
Flula Borg as the voice of DJ Herzogenaurach, a snake DJ who is a fan of Chip and Dale and encounters them in a bathhouse.
Dennis Haysbert as the voice of Zipper, a housefly and member of the Rescue Rangers. He and Gadget eventually got married and had hybrid children after the show's cancellation while also speaking English. Corey Burton also provides Zipper's unintelligible buzzing sounds from the original series.
Keegan-Michael Key as the voices of:
Bjornson the Cheesemonger, a CGI Swedish Chef-esque cheesemonger and member of the Valley Gang.
A frog co-worker of Chip.
Tress MacNeille as the voice of Gadget Hackwrench, an inventive mouse and member of the Rescue Rangers. She and Zipper eventually got married and had hybrid kids after the show's cancellation. MacNeille reprises her role from the original series.
Tim Robinson as the voice of Ugly Sonic, a version of Sonic the Hedgehog who appears in his scrapped original design from the 2020 feature film adaptation.
Seth Rogen as the voices of:
Bob, a motion-capture Viking dwarf and member of the Valley Gang. Bob is loosely based on the motion-capture characters of various motion-capture films such as The Polar Express and Beowulf.
Pumbaa from the 2019 version of The Lion King
Master Mantis from the Kung Fu Panda franchise
B.O.B. from the Monsters vs. Aliens franchise.
J. K. Simmons as Captain S. Putty, a Gumby-esque stop-motion claymation police captain who is investigating the missing toon cases, but is later revealed to be part of the Valley Gang.
KiKi Layne as Ellie Steckler, a rookie LAPD police officer and lifelong fangirl of the Rescue Rangers.
Additionally, Da'Vone McDonald voices Jimmy, a CGI polar bear and member of the Valley Gang. Director Akiva Schaffer alluded Jimmy's appearance to the Coca-Cola polar bear. Schaffer provides voices for numerous minor roles including E.T. from E.T. the Extra-Terrestrial (1982) and Mr. Natural while also appearing in live-action as the director of the original show. Rachel Bloom voices Flounder from the 1989 version of The Little Mermaid, Cubby of the Lost Boys from Peter Pan (1953), Chip's mom, and a bootleg Bart Simpson, among other characters. Liz Cackowski voices Tigra, who is modeled after her appearance in The Avengers: United They Stand, Officer O'Hara, and a cartoon cow who strongly resembles Clarabelle Cow. Despite not reprising Monterey Jack in the film, Jim Cummings reprises his roles as Fat Cat from the original series, the Shredder's "right arm" from the 1987 Teenage Mutant Ninja Turtles animated series, Pete, and Darkwing Duck, in addition to voicing bootleg versions of Winnie the Pooh and Tigger. Chris Parnell appears as Dave Bollinari, Dale's agent. Jeff Bennett voices Lumière from the 1991 version of Beauty and the Beast. Steven Curtis Chapman voices Baloo from the 2016 version of The Jungle Book who Jimmy meets. Jorma Taccone voices the DC Extended Universe version of Bruce Wayne / Batman along with other minor roles. Jean Gilpin voices Chip's neighbor Mrs. House. Alan Oppenheimer voices both He-Man and Skeletor (reprising his role as the latter) from the original He-Man and the Masters of the Universe. Charles Fleischer reprises his role as Roger Rabbit from Who Framed Roger Rabbit, as well as the character's first animated appearance since the 1993 short Trail Mix-Up. Original Rescue Rangers co-creator Tad Stones cameos as the voice of a studio executive. David Tennant reprises his role as Scrooge McDuck from the 2017 version of DuckTales. Paula Abdul appears as a de-aged version of herself, alongside MC Skat Kat from her video for "Opposites Attract", and also voices the 3-D reporter modeled after her. Paul Rudd appears in a live-action cameo as himself.
In the spirit of Who Framed Roger Rabbit, the film features numerous cameo appearances of other animated characters from within the Disney catalogue and other third-party properties that appear without dialogue:
Among the Disney characters include the Three Little Pigs, the Magic Carpet from Aladdin (1992), the Colonel from One Hundred and One Dalmatians (1961), Linda Flynn-Fletcher from Phineas and Ferb, Doc McStuffins, Wynnchel and Duncan from Wreck-It Ralph, and Professor Norton Nimnul, Wart, and Mepps from the original series.
Non-Disney characters include two of the Jellicle cats from the 2019 film adaptation of Andrew Lloyd Webber's musical Cats distributed by Universal Pictures, Blaster from The Transformers, several characters from My Little Pony: Friendship Is Magic (Hasbro), Randy Marsh from South Park, McGruff the Crime Dog, and Detective Florez from Big Mouth.
