Here's the list of cameos in Pippi Longstocking (2021 TV series).
- The Adventures of Willy Beamish: Willy Beamish (Annika's brother), His Friends, His Family.
- Nancy Drew Notebooks/Nancy Drew and the Clue Crew: 8-year-old Nancy and her friends in the third grade. (Clothes using Chick-Napped! version)
- Baby-Sitters Little Sister: Karen and Hannie
- The Kids in Ms. Colman's Class: Ms. Colman's students
- Betsy-Tacy: Betsy, Tacy, and Tib
- Danny Dunn: Danny
- Magic Tree House: Jack and Annie
- Rainbow Magic: Rachel and Kristy
- My Little Pony: Equestria Girls: Applebloom, Sweetie Belle, and Scootaloo.
- Prudence Petitpas: Jojo, Marie, Clotilde, Elvire, Emérance, Duroc, Cyprien, Rigobert, Bertouille, Palamède, and Prudence Petipas
- Karlsson-on-the-Roof: Karlsson, Svante (Soyuzmultfilm version)
- Emil of Lönneberga: Emil
- Children of Noisy Village (the Six Bullerby Children)
- Mio, My Son: Andy, Pompoo
- The Brothers Lionheart: Karl Lejon, Jonatan
- Ronia, the Robber's Daughter: Ronia
- The Boxcar Children: Henry James Alden, Jessica "Jessie" Alden, Violet Alden, Benjamin "Benny" Alden, Watch, James Henry Alden, and Dr. Moore
- Care Bears Nutcracker Suite: Holly, Anna, Peter, Miss Walker, Chris
Here's the list of voice actors in cameos:
- Roger Craig Smith
- Jason Griffith
- Travis Willingham
- Dan Green
- Bryce Papenbrook
- Tom Kenny
- Kirk Thornton
- Mike Pollock
- Quinton Flynn
- Tara Strong
- Tress MacNeille
- Charlie Adler
- Jeff Bergman
- Roger L. Jackson
- Jeff Bennett
- Kath Soucie
- Jess Harnell
- Johnny Yong Bosch