Disney+'s live-action Wonder Man series is building out its cast with the report from TVLine that Demetrius Grosse (Fear the Walking Dead) has signed onto the upcoming series to play Eric Williams a.k.a. the Grim Reaper, the brother of Simon Williams a.k.a. Wonder Man (who will be played by Yahya Abdul-Mateen II).
Wonder Man was created by Stan Lee, Don Heck, and Jack Kirby in The Avengers #9 (1964). Wonder Man (also known as Simon Williams) was a competitor with Tony Stark's company Stark Industries. For a while Wonder Man serves as an antagonist to the Avengers, but he later becomes an Avenger himself.
The Disney+ Wonder Man series is developed by Shang-Chi's Destin Daniel Cretton and Hawkeye's Andrew Guest with Cretton as director and executive producer and Guest as head writer.