Nigel "Numbuh One" Uno / Hoagie Pennywhistle "Numbuh Two" Gilligan Jr. / D.C.F.D.T.L. (Voice)
Kuki "Numbuh Three" Sanban (Voice)
Wallaby "Numbuh Four" Beatles / D.C.F.D.T.L. / Chip / Toiletnator / Mr. Fibb (Voice)
Abigail "Numbuh Five" Lincoln / D.C.F.D.T.L. (Voice)
Father (Voice)
Adult Hoagie
Adult Kuki
Mr. Boss (Voice)
Computer / Mrs. Uno / Numbuh 86 / Numbuh 363 (Voice)
Stickybeard (Voice)
Sonia / Lee (Voice)
Mr. Dink / Knightbrace (Voice)
Numbuh 362 (Voice)
Mr. Uno (uncredited) (Voice)
Lydia Gilligan (Voice)
Nick (Voice)
Count Spankulot (Voice)
Robin Food (Voice)
Cheese Shogun Roquefort (Voice)
Numbuh 74.239 (Voice)
Adult Numbuh 4
Adult Numbuh 5