Ross Bagdasarian Sr. created the original Alvin and the Chipmunks in 1958. That answer is the starting point for any version of the franchise you watch today.
Janice Karman developed ALVINNN!!! and the Chipmunks for modern TV. Ross Bagdasarian Jr. and Bagdasarian Productions kept the family legacy in creative control.

The original Chipmunks began as a novelty recording act. They grew into an animated franchise that has kept evolving for decades.
You can trace the line from the 1958 records to the later animated television series. The 2015 reboot is known as ALVINNN!!! and the Chipmunks.
The Direct Answer: Who Made The 2015 Reboot

Janice Karman created ALVINNN!!! She shaped the series’ tone, character dynamics, and musical identity.
Bagdasarian Productions produced the reboot. Family members helped preserve the franchise’s voice and style.
Janice Karman As Developer And Director
Janice Karman leads the creative vision behind the 2015 animated series. As creator, she brought back Alvinnn!!! with a modern pace, school-life stories, and the familiar blend of comedy and music.
How Ross Bagdasarian Jr. Helped Shape The Series
Ross Bagdasarian Jr. kept the franchise connected to its roots. Family members such as Michael Bagdasarian and Vanessa Bagdasarian supported the identity of the Chipmunks while the reboot introduced the characters to a new audience.
Bagdasarian Productions And The Family’s Creative Control
Bagdasarian Productions maintained the original family vision. The team balanced nostalgia, new jokes, fresh animation, and the voices of the actors who carried the reboot’s energy.
Where The Characters Originally Came From

Before the reboot, the Chipmunks were already a cultural fixture. Their story begins with Ross Bagdasarian Sr., a hit novelty record, and the creation of Alvin, Simon, and Theodore.
Ross Bagdasarian Sr. And The David Seville Persona
Ross Bagdasarian used the stage name David Seville for the original recordings. He later built the fictional Dave Seville character around that persona.
That gave the songs a comic setup. Alvin Seville, Simon Seville, and Theodore Seville emerged as the trio at the center of the act.
How “Witch Doctor” Led To The Chipmunk-Voiced Sound
Ross Bagdasarian created the breakthrough novelty record “Witch Doctor.” He experimented with sped-up vocals and created the signature chipmunk-voiced effect.
That sound helped define both the music and the characters.
From “The Chipmunk Song” To The First Animated Version
In late 1958, Liberty Records released The Chipmunk Song. The hit introduced the trio more clearly.
The characters later starred in The Alvin Show, their first animated version. This helped turn the chipmunks into an enduring cartoon property.
For a concise franchise history, Wikipedia’s Alvin and the Chipmunks overview tracks the 1958 origin and the move into animation.
How The Modern Series Reimagined The Franchise

The reboot updated the Chipmunks for a contemporary audience while keeping the family formula intact. It mixed fast comedy, school stories, and music.
The show rolled out across multiple networks and regions.
The Core Cast: Alvin, Simon, Theodore, And Dave
The central lineup stayed familiar. Dave, David Seville, Alvin Seville, Simon Seville, and Theodore Seville drive the stories.
The reboot leaned into everyday family chaos. Dave tries to manage the boys’ constant schemes.
Bringing Back The Chipettes For A New Generation
The show brought back the Chipettes: Brittany, Jeanette, and Eleanor. They often appear as Brittany Miller, Jeanette Miller, and Eleanor Miller.
Supporting characters like Miss Smith, Principal Meadows, and Officer Dangus help widen the world. These additions make the series feel like a full school-and-neighborhood comedy.
Nickelodeon, Nicktoons, And International Release
The series reached U.S. viewers through Nickelodeon and Nicktoons. International partners expanded it through M6, Gulli, Teletoon, and Disney Channel.
Distribution and production support from PGS Entertainment, Technicolor Animation Productions, Ouido! Productions, and Mikros Animation helped the show travel widely. The French title is Alvinnn!!! et les Chipmunks.
The theme song We’re the Chipmunks and its TV version, We’re the Chipmunks (Music from the TV Show), kept the brand instantly recognizable from season 1 through season 5.
Why The Creators Matter In The Bigger Chipmunks Story

The creators shaped more than one TV show. They turned a one-off novelty idea into albums, specials, films, and a brand that still reaches kids and parents.
Earlier TV Specials, Albums, And Franchise Revivals
The Chipmunks returned through projects like A Chipmunk Christmas and A Very Merry Chipmunk. Albums such as Chipmunk Punk and Chipmunk Rock showed the characters could adapt to new musical trends.
Releases like The Chipmunks Go Hollywood kept the franchise active between screen projects.
How The Films Expanded The Audience
The later live-action/CGI films made the property even more familiar to mainstream audiences. Titles like The Chipmunk Adventure, Chipwrecked, The Squeakquel, and The Road Chip helped the characters stay visible across generations.
Films such as Alvin and the Chipmunks Meet Frankenstein and Alvin and the Chipmunks Meet the Wolfman added to the legacy. Voices and performances came from names like Ian Hawke, Justin Long, Matthew Gray Gubler, Jesse McCartney, Jason Lee, David Cross, and Talking Teddy.
Awards, Recognition, And Lasting Legacy
The franchise received major recognition through Grammy Awards, Kids’ Choice Awards, and a star on the Hollywood Walk of Fame.
Rhino Records, Sony, Universal Studios, Fox 2000 Pictures, Regency Enterprises, soundtrack albums, iMunk, and Alvin’s Wild Adventures have all contributed to the Chipmunks’ ongoing identity.