They never say.
Nathan Kress.
Noah Munck.
Her real name is Jennette Mccurdy
Jennete McCurdy
His real name is Noah Munck.
Alexander Reed... I believe...
Samantha "Sam" Puckett is sam's character name on icarly but the actresses' name is actually Jennette mcurdy
Guppy's real name is Ethan Munck. His older brother is Noah Munck, who plays Gibby on iCarly:)
Jennette McCurdy
Nevel is played by the actor Alexander Reed.
on her show Carley Shaw off her show it is Miranda cosgrove