Girls5eva

Sara Bareilles portrays Dawn, a member of the '90s girl group. Dawn is the lead singer of Girls5eva and is determined to revive their music career. Bareilles is a singer and songwriter known for her pop and soulful music.

Busy Philipps plays the character of Summer, another member of Girls5eva. Summer is known for her bubbly personality and is often the comedic relief in the group. Philipps is an actress and television host recognized for her roles in various TV shows and films.

Paula Pell portrays Gloria, a former member of Girls5eva. Gloria has a tough exterior and provides the group with a no-nonsense attitude. Pell is a writer and comedian who has worked on popular sketch comedy shows.

Renée Elise Goldsberry plays the character of Wickie, one of the members of Girls5eva. Wickie is determined to prove herself as a successful songwriter. Goldsberry is an actress and singer who gained recognition for her Tony-winning performance in the Broadway musical 'Hamilton.'

Stephen Colbert guest stars as Alf Musik, a music producer who becomes involved in the Girls5eva comeback. Colbert is a comedian and television host known for hosting 'The Late Show with Stephen Colbert.'

John Slattery makes an appearance as John Slattery in Girls5eva. Slattery is an actor known for his roles in various TV shows and films, including 'Mad Men' and 'Spotlight.'

Jimmy Fallon makes a cameo as himself in Girls5eva. Fallon is a television host, comedian, and actor who is best known as the host of 'The Tonight Show Starring Jimmy Fallon.'

Talia Balsam appears as herself in Girls5eva. Balsam is an actress known for her roles in both TV shows and films, including 'Mad Men' and 'Divorce.'