How do you spell this name?

I always thought Hellen was a typo but apparently...

Hellen (Ancient Greek: Ἕλλην) was the mythological progenitor of the Hellenes (Ἕλληνες), the son of Deucalion (or sometimes Zeus) and Pyrrha, brother of Amphictyon and father of Aeolus, Xuthus, and Dorus. His name is also another name for Greek, meaning a person of Greek descent or pertaining to Greek culture, and the source of the adjective "Hellenic". (source: wiki)