New Avengers (Thunderbolts*)MCUDraft

John Walker

U.S. Agent · Played by Wyatt Russell

A super-soldier who was briefly Captain America before going rogue.

Story so far

Last seen in Thunderbolts* (2025)

Walker is part of the Thunderbolts, now publicly branded the New Avengers.

In Avengers: DoomsdayConfirmed

Named in Marvel's March 2025 cast reveal; seen in the first full trailer (July 2026).

Photo: Wyatt Russell at Comic Con Connection in 2026 by JaceMerlyn, licensed under CC BY-SA 4.0. Wikimedia Commons.

Titles featuring John Walker, most important first.

Key concepts connected to John Walker.

Avengers: Doomsday · 2026

The first full trailer (July 2026) — the first real look at Robert Downey Jr.'s Doctor Doom.

Thunderbolts* · 2025

The misfit team that ends up branded the “New Avengers”.

Thunderbolts* · 2025

The first look at the misfit team.

The Falcon and the Winter Soldier · 2021

Sam and Bucky's series — and the debut of John Walker and Joaquín Torres.