The show only ran for five seasons. But, over that span, five different actors voiced its titular football-headed character.
The first to voice Arnold was J.D. Daniels
, who is probably better known as Peter Mark from The Mighty Ducks
. Daniels only voiced the show's pilot, which was originally aired in theaters before the Nickelodeon movie Harriet the Spy
Playing the titular character of Arnold was probably the career highlight for both Philip Van Dyke
and Toran Caudell
. Caudell's other claim to fame was co-writing two songs on Hilary Duff's debut album, and Van Dyke appeared as Luke the goblin in the Disney Channel Original Movie Halloweentown and its sequel.
Alex D. Linz
is surely the least well-known of the Arnold actors, as he only performed in the series' final two episodes. His main claim to fame was as the substitute for Macauly Culkin in the atrociously bad Home Alone 3
. The most prolific Arnold may very well be Spencer Klein
. He played Arnold in the show's feature-length film and appeared as Arnold in episodes from 1999 to 2004.
Check out IMDB for more info on all of the Arnolds