Migi

Migi is a good Parasyte who failed to take over Shinichi Izumi’s brain and instead took over his right arm, hence the name (as it is Japanese for Right). She works hand in hand with Shinichi in mostly taking down bad members of her kind. She appears alongside Shinichi and other crossover characters in Molly: Defenders of the Publicverse. Jet Propulsion and Wordgirl meet her in this story and comment about them being other different aliens and them being alike to humans (except that Migi’s kind are shapeshifters and that they can make themselves look like humans other other things, and naturally Migi is an eyestalked blob), and also she has to help others battle the Thing, another similar alien species to her own (except Migi and her kind never came in UFOS unlike most aliens and the Thing does not produce built-in blades).