I am not yet fully done with this here "collection" of alter egos, two more and It will be, but here are the ones that are done
Darkiplier (Mark)
Colonel (Mark)
Wilford (Mark)
Markiplier
Dr. Schneeplestein (Jack)
Marvin the Magnificent (Jack)
Antisepticeye (Jack)
Chase Brody (Jack)
Jackaboy-Man (Jack)
Jacksepticeye
And Pewdiepie
(Will add others and update as soon as I get them done :3)