August Walker

Lore & Background

Walker is introduced as a CIA agent sent by director Erika Sloane to oversee Ethan Hunt's team after they fail to recover plutonium cores in Berlin. Sloane directs Walker to consider anyone expendable, setting the stage for his ruthless approach. Throughout the mission, Walker provides Sloane with evidence suggesting Ethan is the real John Lark, framing him for the terrorist plot. His true identity is exposed when the team tricks him into admitting he is Lark during a confrontation in London. Following the revelation, Walker kills IMF secretary Alan Hunley in a gunfight and escapes alongside Solomon Lane. He later threatens the life of Ethan's ex-wife Julia, using her as leverage to control Ethan. In the climax near the Siachen Glacier in Kashmir, Walker leaves with the bomb detonator by helicopter while Lane remains behind. Ethan hijacks a helicopter and crashes into Walker's, causing both to crash on a cliff. Walker is killed when Ethan releases a cargo hook that impales him, before disarming the detonator.

In Their Own Story

Walker first appears in Fallout as a CIA operative assigned to Ethan Hunt's team after the loss of plutonium cores in Berlin. He performs a HALO jump above Paris with Ethan to infiltrate a nightclub where the cores are being sold. During the mission, Walker secretly provides Sloane with evidence framing Ethan as John Lark. In London, the team exposes Walker as the real Lark, leading to a gunfight where Walker kills Alan Hunley and escapes with Solomon Lane. He later threatens Julia's life to control Ethan. In the final confrontation near the Siachen Glacier, Walker escapes by helicopter with the bomb detonator. Ethan hijacks a helicopter and crashes into Walker's, causing both to crash on a cliff. Walker is killed when Ethan releases a cargo hook that impales him, allowing Ethan to disarm the detonator and prevent a nuclear catastrophe.

Reader's Guide

August Walker is a central antagonist in Mission: Impossible – Fallout, portrayed by Henry Cavill. He is a CIA assassin assigned to Ethan Hunt's team by director Erika Sloane after the team fails to recover plutonium cores in Berlin. Sloane directs Walker to consider anyone expendable, highlighting his ruthless nature. Walker performs a HALO jump above Paris with Ethan to infiltrate a nightclub where arms broker Alanna Mitsopolis is selling the cores. Throughout the mission, Walker secretly provides Sloane with evidence suggesting Ethan is the real John Lark, the extremist mastermind behind the plot. In London, the team tricks Walker into admitting he is Lark, leading to a gunfight where Walker kills IMF secretary Alan Hunley and escapes with Solomon Lane. He later threatens the life of Ethan's ex-wife Julia to control Ethan. In the climax near the Siachen Glacier in Kashmir, Walker leaves with the bomb detonator by helicopter while Lane remains behind. Ethan hijacks a helicopter and crashes into Walker's, causing both to crash on a cliff. Walker is killed when Ethan releases a cargo hook that impales him, before disarming the detonator and preventing a nuclear attack.

Did You Know?

• August Walker is revealed to be the extremist John Lark, the mastermind behind the plot to acquire nuclear weapons.
• Walker performs a HALO jump above Paris with Ethan Hunt to infiltrate a nightclub where plutonium cores are being sold.
• Walker kills IMF secretary Alan Hunley during a gunfight in London after being exposed as John Lark.
• Walker is killed when Ethan releases a cargo hook that impales him during a helicopter crash near the Siachen Glacier.
• Walker threatens the life of Ethan's ex-wife Julia to control Ethan's actions during the climax.