Egros (Earth-616), Marvel Database
From where did Galactus from Marvel come from? - Quora
What is the strongest version of Galactus? Is it the Earth 616 version? - Quora
Marvel Comics: Cosmic Entities / Characters - TV Tropes
Marvel Comics: Shi'ar / Characters - TV Tropes
The Armchair Squid: April 2020
Earth-616 (Prime Marvel Universe) - Verse - Superhero Database
Earth-616 (Prime Marvel Universe) - Verse - Superhero Database
Slime (Hellbent) (Earth-616), Marvel Database
Howard the Duck - Wikipedia
Super-Ego (Earth-616), Marvel Database