Who Is Dex? Origin, Powers and Key Facts

Dex (Marvel): A man forced into servitude by and for Morlun. Ultimately though, he was the one to kill him.

By the Pop Culture Files editorial team•Updated July 4, 2026•3 min read•✓ Fact-checked

Dex is a Marvel comic book character, with over 11 comic issue appearances. A man forced into servitude by and for Morlun. Ultimately though, he was the one to kill him.

Who is Dex?

The man known only as Dex was a servant/slave of Morlun . He seemed to genuinely despise working for Morlun, even going so far as to request that he kill him, a request that Morlun respectfully declined. When Spider-Man managed to severely weaken Morlun by forcing him to feed off of the radioactivity in his body, Dex saw his chance and shot Morlun and killed him. Despite his own turmoil over whether or not to allow Morlun to live, Spider-Man was not happy with what Dex did and promised to hurt him worse than Morlun ever could've if he saw him again. As soon as Spider-Man was out of hearing range, Dex jubilantly began singing, "Ding-Dong! The Witch is Dead".

Key facts

Dex is of human origin. The character is published by Marvel. With 11 recorded issue appearances, Dex ranks among the most featured characters in comics.