Note: Almost all character designs were by Cavity-Sam on DeviantArt. The exception is the screenshots, which use character vectors, as well as Foxy Colleen by Funky_Cretin, and the guest stars, which were done via toonme.com, some of which have been edited.
The band (with Mitzi Sr.) as they appear in the series.
Concept art of Mitzi Sr. (in her 1980s look) as she appeared in the series.
Concept art of Billy Bob, Looney Bird, and Birthday Bird as they appear in the series.
Looney Bird as he appears in the series; he's seen in his "running sneakers".
Fatz Geronimo as he appears in the series.
Promotional artwork of Beach Bear and Mitzi Jr. for the Season 2 episode "A Rock-afire Christmas".
Dook LaRue as he appears in the series.
Rolfe DeWolfe as he appears in the series.
Concept art of Rolfe and Earl.
Promotional artwork of Cecilia Carrotcakes and Uncle Klunk for the Season 2 episode "Klunk's Fan Club".
J-Fatz as he appears in the series.
Rockstar Chuck E. as he appears in the series.
PTT Chuck E. as he appears in the series.
Harmony Howlette Sr. as she appears in the series.
Foxy Colleen as she appears in the series.
Madame Oink as she appears in the series.
Crusty the Cat as he appears in the series.
Concept artwork of Coach Chuck E. and 1990s Helen for a flashback in the Season 5 episode "More Versions of Us".
Cecilia Carrotcakes
Mugi accepting Tina's bet in the episode "Human Beats Tiger".
Avenger Chuck E. during the song "Where is Looney Bird?" in the double-length Season 5 episode of the same name.