Who voiced Steve in What If?

He’s also not voiced by Evans, who played Steve in the MCU to this point. Seasoned voice actor Josh Keaton takes over the iconic role, which is credited here as Skinny Steve Rogers for obvious reasons.

Who voiced Captain Carter in What If?

This episode stars the voices of Captain America: The First Avenger actors Hayley Atwell as Peggy Carter / Captain Carter, Samuel L. Jackson as Nick Fury, Stanley Tucci as Abraham Erskine, Dominic Cooper as Howard Stark, Neal McDonough as Dum Dum Dugan, Sebastian Stan as Bucky Barnes, and Toby Jones as Arnim Zola.

Who voice Red Skull in What If?

Roscoe Wayne “Ross” Marquand portrayed Johann Schmidt/Red Skull in Avengers: Infinity War. He also portrayed an alternate Johann Schmidt/Red Skull in Avengers: Endgame. He voiced an alternate Johann Schmidt/Red Skull in the What If…? episode What If… Captain Carter Were The First Avenger?.