Icarus

Icarus is Nemo's pet flying squirrel, residing in the tree outside Nemo's bedroom window. He primarily communicates via a series of squeaky jitters, though some comprehensible English occasionally slips out, and he very rarely leaves Nemo's side (or, in most instances, his shoulder). Dressed in an old-fashioned aeronautical helmet, he enjoys nearly anything as long as his best buddy Nemo is with him. Like most characters, Icarus does get aggravated, typically when called "a rat" by the Princess and then again (accidentally) by Nemo. However, he is usually quick to forgive.