Suggestions by @fredericarrowsmith

Brad Johnson

as Captain America in MCU Recast (With only late actors R.I.P.)

Martin Landau

as Grandmaster in MCU Recast (With only late actors R.I.P.)

David Warner

as Grandmaster in MCU Recast (With only late actors R.I.P.)

Anthony Quinn

as Grandmaster in MCU Recast (With only late actors R.I.P.)

Peter O'Toole

as Grandmaster in MCU Recast (With only late actors R.I.P.)

Laurence Olivier

as Grandmaster in MCU Recast (With only late actors R.I.P.)

Lee Van Cleef

as Vulture in MCU Recast (With only late actors R.I.P.)

Leonard Nimoy

as Vulture in MCU Recast (With only late actors R.I.P.)

Pete Postlethwaite

as Vulture in MCU Recast (With only late actors R.I.P.)

Vanity

as Valkyrie in MCU Recast (With only late actors R.I.P.)

Eartha Kitt

as Valkyrie in MCU Recast (With only late actors R.I.P.)

Bob Peck

as Gorr The God Butcher in MCU Recast (With only late actors R.I.P.)

John Vernon

as Thanos in MCU Recast (With only late actors R.I.P.)

Lawrence Tierney

as Thanos in MCU Recast (With only late actors R.I.P.)

Andreas Katsulas

as Thanos in MCU Recast (With only late actors R.I.P.)

Lenny McLean

as Thanos in MCU Recast (With only late actors R.I.P.)

William Smith

as Thanos in MCU Recast (With only late actors R.I.P.)

Christopher Plummer

as Odin in MCU Recast (With only late actors R.I.P.)

Richard Harris

as Odin in MCU Recast (With only late actors R.I.P.)

Albert Finney

as Odin in MCU Recast (With only late actors R.I.P.)