Thragg was introduced in "Invincible Returns" #1 from Kirkman, Ryan Ottley, Cory Walker, and Rus Wooton, but he hasn't been shown at all in the animated series. That's seemingly about to change, as ...

Spoilers for "Invincible" season 3 to follow. Robert Kirkman first worked with Steven Yeun when the latter played Glenn on "The Walking Dead" (a series based on Kirkman's long-running zombie comic).