Henry Hugglemonster/Arthur

Cast

 * Henry as Arthur
 * Summer as D.W.
 * Kelly as Kate
 * Beckett as Pal
 * Mammo as Jane
 * Daddo as David
 * Gertie as Francine
 * Meg as Sue
 * Cobby as Buster
 * Estelle as Fern
 * Denzel as George
 * Roberto as Binky
 * Izzy as Muffy
 * Kayla as Prunella
 * Oscar as Alan
 * Milo and Roy as Timmy and Tommy
 * Harold as Dad
 * Maude as Mom
 * Frred (from Happy Monster Band) as R4
 * Ink (from Happy Monster Band) as 3W
 * Nan-oh Thora
 * Signor Roartonto as Mr. Ratburn
 * Isabella Roarson as Paige Turner
 * Grando as Dave
 * Mrs. Growlberg as Mrs. MacGrady
 * Captain Hollander as Mr. Haney
 * Dexter as Bionic Bunny
 * Dee as Mary Moo Cow
 * Jessie as Nadine
 * Marasol as Emily
 * Roddy as Rattles
 * Ruby as Molly
 * Irving as Mr. Morris
 * Hunter as James
 * Matilde as Mrs. Morgan
 * Swifty as Bo
 * Candice as Catherine
 * Monsterrobot 1 as Toby
 * Monsterrobot 2 as Slink
 * Jordan as Ed
 * Kate as Millicent
 * Officer Higgins as The Policeman
 * Joyce as Oliver
 * Gregor as Laverne
 * Fergus as Mike
 * Mr. Winklemonster as Gunky
 * Grammo as Ladonna
 * Diana as Sally
 * Ben as Chip
 * Kiki as Mei-Lin
 * Ivor as Stanley
 * Hugo as Rapty
 * Mayor Roariani as Rodentia
 * Sunshine as Rubella