Will Thorne Staff Writer“Peacemaker,” the HBO Max “Suicide Squad” spinoff series, continues to grow.The show has added four new faces to its cast, namely Chukwudi Iwuji (“When They See Us”) as a series regular, and Lochlyn Munro (“Riverdale”), Annie Chang (“Shades of Blue”) and Christopher Heyerdahl (“Togo”) as recurring guest stars.They join previously announced cast members John Cena (playing the titular role), Danielle Brooks, Steve Agee, Robert Patrick, Jennifer Holland, and Chris Conrad in