"Excuse me, little boy, are you having trouble finding your seat?"

"Nope, it's wight hewe."

This article is about Elmyra Duff's younger brother. You may be looking for the little rabbit boy.


Duncan Duff as Captain Quark

Duncan Duff is Elmyra Duff's younger brother. He appears in the episodes, Take Elmyra Please and Grandma's Dead. He is voiced by Whitby Hertford.

Duncan has two superhero alter-egos: Ninja Boy in Take Elmyra Please, and Captain Quark in Grandma's Dead (both consisting of a black and red cape and a utility pack).

Duncan truly cares about Elmyra whenever she gets herself into trouble. In Take Elmyra Please, he, as Ninja Boy, witnesses Elmyra being kidnapped by George and Leonard, who take her to a warehouse and hold her for ransom, refusing to let her go until they have the formula for Mac Duff's clean-burning alternative fuel made from cholesterol. Duncan follows George and Leonard to the warehouse, then rushes back home to tell his family, who, thinking he is playing one of his games, doesn't believe him. That is, of course, until a parade set up by Arthur Jabba tells the family that Elmyra has been kidnapped and in order to get her back, they must surrender the fuel formula. Duncan helps his family by leading them and the police to the warehouse where Elmyra is kidnapped.

In Grandma's Dead, Duncan is sick and is unable to go to school. He, as Captain Quark, decides to pass the time by watching the movie, Nosy Neighbors, on his TV. He spies on his next-door neighbor, Mr. Bump, a muscular man. When he hears that Grandma Duff is gone, he notices that Mr. Bump has a box that she left behind. He starts to suspect that Mr. Bump killed her. When Elmyra goes to Mr. Bump's house to invite him to the funeral for her hamster, (which he and many others believe the funeral is for Grandma Duff), Duncan worries that Mr. Bump might kill Elmyra as well, so he sneaks into his house to save her. As it turns out, Grandma Duff is alive and well, and Mr. Bump just wanted to return the box she left behind.


  • Duncan Duff is not to be confused with Duncan Potter, the little rabbit boy Babs Bunny babysat in the Acme Home Shopping Show episode segment, I Was A Teenage Bunnysitter.
  • Duncan is voiced by Whitby Hertford, who also voices Fliorello from The Flea Family. Coincidentally, both characters have an older sister played by Cree Summer (Elmyra and Itchiano, respectively).


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