2006-07-16 17:59:27 · 10 answers · asked by kaykay4915 3 in Entertainment & Music ➔ Television
never had one
2006-07-16 18:03:34 · answer #1 · answered by sunshine25 7 · 0⤊ 0⤋
Throughout the series, Arnold's last name is never mentioned.
http://www.imdb.com/title/tt0115200/trivia
2006-07-16 18:20:49 · answer #2 · answered by ★Fetal☆ ★And ☆ ★Weeping☆ 7 · 1⤊ 0⤋
Yo know what, just Arnold.
2006-07-16 18:03:37 · answer #3 · answered by Malcolm uses Xbox 360 Avatar 7 · 0⤊ 0⤋
he didnt have a last name. he was just Arnold.
2006-07-16 18:05:53 · answer #4 · answered by Anonymous · 0⤊ 0⤋
He has a last name but every time it has come up in the show, there is some loud noise or distraction and we as the viewer never know.
2006-07-20 07:54:41 · answer #5 · answered by Anonymous · 0⤊ 0⤋
He doesn't have one
2006-07-16 18:02:32 · answer #6 · answered by surfergurl_020 3 · 0⤊ 0⤋
arnold....arnold arnold
2006-07-16 18:02:34 · answer #7 · answered by mazzygirl83 6 · 0⤊ 0⤋
he doesn't have one
2006-07-16 18:20:49 · answer #8 · answered by Chloe S 2 · 0⤊ 0⤋
I dont Think he has one
2006-07-16 18:06:41 · answer #9 · answered by DJ 1 · 0⤊ 0⤋
he never was given one.
2006-07-16 18:02:30 · answer #10 · answered by PANDABEAR 5 · 0⤊ 0⤋