Nadine Lowenthal (voiced by Lauren Robinson) .
angry
The character was never given a last name
"Watch hey Arnold" is not a question therefore cannot be answered at this time.
Gerald is Arnold's best friend who loves ping-pong.
No. In the episode "The Journal" They reveal his parents (Miles and Stella) are explorers. His mom is a Botanist and they went to South America because they heard of an unknown disease that was killing plants, animals, and humans. Sometime after Arnold is born (He was born during their trip), they go back to America. But they are called back to South America. So they give Arnold to Miles's parents and they take off. Craig Bartlett created a follow up two hour movie set to air on Nickelodeon in November 2017 [exact date yet unknown] titled Hey Arnold Jungle Movie that will tie up the series and answer questions involving Arnold's missing parents.
In 2006 in an online chat with Hey Arnold! fans, Bartlett revealed that Arnold's grandpa used his last name throughout the series, almost confirming that Arnold's last name is "Shortman".
angry
The character was never given a last name
It isn't revealed.
Abner
Hey Arnold! was created by Craig Bartlett .
There are 5 seasons of Hey Arnold.
wild thonberris,catdog,hey arnold,
the last episode is called the journal. it is when he finds a journal of the stuff his parents did.. you can watch it on netflix.
"Watch hey Arnold" is not a question therefore cannot be answered at this time.
Try looking on google :). type the name and what episode it is.
Hey Arnold! debuted on Nickelodeon in October 1996 & aired until June 2004.