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Starring

 * Matt Bomer as Tony Stark / Iron Man  (Seasons 1-2)
 * Matt Smith as Reed Richards / Mister Fantastic  (Seasons 1-2)
 * Jeremy Irons as Max Eisenhardt / Magneto  (Seasons 1-2)
 * Jonathan Rhys Meyers as Stephen Strange / Doctor Strange  (Seasons 1-2)
 * David Oyelowo as T'Challa / Black Panther  (Seasons 1-2)
 * Luke Evans as Namor McKenzie / Namor  (Seasons 1-2)
 * Hugh Dancy as Blackagar Boltagon / Black Bolt † (Season 1)
 * TBA as Steve Rogers / Captain America  (Seasons 1-2)
 * Gemma Arterton as Wanda Maximoff / Scarlet Witch  (Seasons 1-2)
 * Nikolaj Coster-Waldau as Victor von Doom / Doctor Doom  (Season 2)
 * Ron Perlman as Thanos  (Season 2; Cameo Season 1)
 * Bradley Cooper as Hank Pym / Giant Man  (Season 2; Recurring Season 1)
 * Yvonne Strahovski as Carol Danvers / Captain Marvel  (Season 2; Recurring Season 1)
 * Amy Acker as Medusalith Amaquelin / Medusa  (Season 2; Recurring Season 1)
 * Kara Tointon as Jean Grey / Marvel Girl  (Season 2)
 * Freema Agyeman as Ororo Munroe / Storm  (Season 2; Recurring Season 1)
 * Jude Law as Vision  (Season 2; Recurring Season 1)
 * TBA as Peter Parker / Spider-Man  (Season 2)
 * Bradley James as Johnny Storm / Human Torch  (Season 2; Recurring Season 1)