Francesca Marie SmithFrancesca Marie Smith was 11 in Arnold's Christmas as 'Helga Pataki (voice)'.
Jamil Walker SmithJamil Walker Smith was 14 in Arnold's Christmas as 'Gerald Johanssen (voice)'.
Tress MacNeilleTress MacNeille was 45 in Arnold's Christmas as 'Grandma Gertrude (voice)'.
Dan CastellanetaDan Castellaneta was 39 in Arnold's Christmas as 'Grandpa Phil (voice)'.
Maurice LaMarcheMaurice LaMarche was 38 in Arnold's Christmas as 'Big Bob Pataki (voice)'.
Kath SoucieKath Soucie was 29 in Arnold's Christmas as 'Miriam Pataki (voice)'.
Olivia HackOlivia Hack was 13 in Arnold's Christmas as 'Rhonda Wellington Lloyd (voice)'.
Christopher WalbergChristopher Walberg was 10 in Arnold's Christmas as 'Stinky Peterson (voice)'.
Anndi McAfeeAnndi McAfee was 17 in Arnold's Christmas as 'Phoebe Heyerdahl (voice)'.
Baoan ColemanBaoan Coleman was >> in Arnold's Christmas as 'Mr. Hyunh (voice)'.
Hiep Thi LeHiep Thi Le was 25 in Arnold's Christmas as 'Mai (voice)'.
Vincent SchiavelliVincent Schiavelli was 48 in Arnold's Christmas as 'Mr. Bailey (voice)'.
Dom IrreraDom Irrera was >> in Arnold's Christmas as 'Ernie Potts (voice)'.Steve VikstenSteve Viksten was 36 in Arnold's Christmas as 'Oskar Kokoshka (voice)'.
Tuck TuckerTuck Tucker was 35 in Arnold's Christmas as 'Director'Steve VikstenSteve Viksten was 36 in Arnold's Christmas as 'Development Producer, Story, Writer'
Craig BartlettCraig Bartlett was >> in Arnold's Christmas as 'Creator, Development Producer, Story'Joe AnsolabehereJoe Ansolabehere was >> in Arnold's Christmas as 'Development Producer, Story'
Lane Toran
Jamie Mitchell