Danny Jacobs
King Julien (voice) (13 eps)
Jeff Bennett
Horst / Hector / Willie (voice) (13 eps)
India de Beaufort
Clover (voice) (13 eps)
Kevin Michael Richardson
Maurice (voice) (13 eps)
Andy Richter
Mort / Ted (voice) (13 eps)
Debra Wilson
Masikura (voice) (13 eps)
Betsy Sodaro
Xixi (voice) (13 eps)
JB Blanc
Mountain Lemur Captain (voice) (11 eps)
Maurice LaMarche
Koto (voice) (8 eps)
David Krumholtz
Timo / Mom-Bot (voice) (7 eps)
Dwight Schultz
Karl (voice) (7 eps)
Henry Winkler
Uncle King Julien (voice) (6 eps)
Rob Paulsen
Brodney (voice) (4 eps)
Matthew Lillard
Ned (voice) (2 eps)
H. Jon Benjamin
Fred (voice) (2 eps)
Grey DeLisle
Pam (voice) (2 eps)
Max Greenfield
Kipper (voice) (2 eps)
Bill Fagerbakke
Hans (voice) (2 eps)
Glen Powell
Trent (voice) (2 eps)
Sarah Thyre
Becca / Dorothy (voice) (2 eps)
Jon Heder
Tentacle (voice) (2 eps)
David Koechner
Nurse Phantom (voice) (1 eps)