Minor and Unnamed Human Characters
The following human characters are unnamed and/or only have minor appearances in the episodes in which they appear.
|Herb & Unnamed Woman||
Appear in The Switching Hour, Ickis, Krumm, and Oblina come to their door while trick-or-treating.
Herb is voided by Jim Cummings
The unnamed woman may be the character credited as Alice.
|Insect Girl & Masked Girl||
Guests at the second Halloween party. Insect Girl remarks of Ickis "He's kinda short, but what a babe."
The Insect girl may be the character credited as Teen.
Nicky and Jake's Mother
Nicky and Jake's mother appears in The Switching Hour.
She is voiced by Susan Blu (listed in credits as "Mom")
|Nicky's Teacher||Appears in The Switching Hour, teaches Nicky's class at J. Herbert Moore Elementary School, where she sent Ickis—who she believed to be Nicky—to detention for describing his home as a dump.
She is voiced by Susan Blu (listed in credits as "Teacher")
Appears at Halloween party dressed as a skeleton. Initiates "dead man's game."
Based on order of appearance, may be the character credited as Kid 3
Appears in The Switching Hour, one of the students in detention who mocks Ickis for being sent there for "disrupting class."
She is voiced by Pamela Hayden
He is voiced by Erik Von Detton
Dressed as a vampire and cave-girl, they mistake Ickis, Krumm, and Oblina for humans in costume and give them pennies. They are later seen at the Halloween parties.
Vampire kid may be the character credited as Kid 1
Cave-girl may be the character credited as Kid 2, Girl, or Little Girl
Truck driver who is scared by Oblina and Gludge.
Voiced by Charlie Adler.
|Bob & Rob||
Human workers who unpacked the sarcophagus of Katana.
Bob is voiced by Gregg Berger
Rob is voiced by Charlie Adler
|Katana||Katana was a pharaoh in ancient Egypt. Katana died and was mummified several thousand years before appearing in Curse of Katana.|
|Reporters||Several human reporters gathered to witness the revived Katana. Among them Exposia Vertov.|
|Responders||Human police and fire personnel, who responded to the museum's alarm.|
|Movie Cowboys||Actors portraying cowboys in a black and white human film.|
|Train Passengers||Human passengers on a train which was the target of a cowboy-themed scare by Ickis, Krumm, and Oblina|
|Cindy & Joan||
Cindy and Joan are the owners and operators of Cindy & Joan: Construction and Demolition. They appear in Monster Blues where they try to tear down the condemned building in which Ellis Robinson is living.
Cindy is voiced by Diane Delano, Joan by B. J. Foster.
Unknown Credited Human Characters
The following human characters appear in the credits of an episode, but have not been linked to a specific character.
|Alice||Appears in The Switching Hour; voiced by Pamela Hayden|
|Girl||Appears in The Switching Hour; voiced by Gabrielle Boni|
|Kid 1||Appears in The Switching Hour; voiced by Jarrett Lennon|
|Kid 2||Appears in The Switching Hour; voiced by Gabrielle Boni|
|Kid 3||Appears in The Switching Hour; voiced by Aaron Michael Metchik|
|Kid 4||Appears in The Switching Hour; voiced by Susan Blu|
|Kid 5||Appears in The Switching Hour; voiced by Debi Derryberry|
|Kid 9||Appears in The Switching Hour; voiced by Aaron Michael Metchik|
|Little Girl||Appears in The Switching Hour; voiced by Debi Derryberry|
|Teen||Appears in The Switching Hour; voiced by Pamela Hayden|
|Vic||Appears in The Switching Hour; voiced by Erik Von Detton|