Guest Stars Gui Agustini voices Roberto Da Costa Chris Britton voices Mr. Sinister Chris Potter voices Cable Gil Birmingham voices Forge Isaac Robinson-Smith voices Bishop Theo James voices Bastion Josh Keaton voices Captain America Jennifer Hale voices World Leader #3 Ross Marquand voices Apocalypse Gates McFadden voices Mother Aksani Matthew Waterson voices World Leader #1 JP Karliak voices Radio Jockey JP Karliak voices World Leader #2 Isaac Robinson-Smith voices King T'Chaka Adetokumboh M'Cormack voices En Sabah Nur Co Starring Arthur Ortiz voices Additional Voices Terri Douglas voices Additional Voices Shelby Young voices Additional Voices Matthew Wood voices Additional Voices Robin Atkin Downes voices Additional Voices Michael Ralph voices Additional Voices Helen Sadler voices Additional Voices David W. Collins voices Additional Voices Credit Only Catherine Disher voices Val Cooper Uncredited JP Karliak voices Mr. Sinister (Morph)