
When an American astronaut disappears on a Mars mission, space agency officials fearing loss of public support and funding orchestrate a cover‑up by recruiting an identical double. The deception unravels as the astronaut’s wife discovers the impostor; despite her anger she falls for him and initially keeps the secret. As a new Mars mission looms, both decide to reveal the truth.
Does The Astronaut have end credit scenes?
No!
The Astronaut does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of The Astronaut, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Walter Brooke
Tom Everett

Richard Stahl
Fred, Beachgoer's Friend

Susan Clark
Gail Randolph

Monte Markham
Eddie Reese / Col. Brice Randolph

Richard Anderson
Dr. Wylie

Loretta Leversee
Toni Scott

Paul Kent
Carl Samuels

Robert Lansing
John Phillips

Patsy Garrett
Boy's Mother

James B. Sikking
Astronaut Higgins

Jackie Cooper
Kurt Anderson

Tom Hallick
Agent Wilson

Paul Micale
Beachgoer

John Lupton
Don Masters

Bob Harks
Photographer (uncredited)

John S. Ragin
Walters

Ray Dimas
Freddie
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Read the complete plot summary of The Astronaut, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
Brice Randolph, Monte Markham, is the first astronaut to reach the Martian surface, and the live TV coverage abruptly ends as the signal is lost. Later, what happened on Mars is revealed off-camera: Brice reports a breach in his EVA suit and dies, and the second crewmate lifts off again under strict secrecy. The news reaches NASA, which fears the whole mission could be canceled if the truth comes out publicly, so they decide to keep the incident quiet while they search for answers about the mysterious failure.
In a bold and unsettling plan, NASA engineers devise a way to keep Brice’s mission alive in spirit by having a replacement take his place. Eddie Reese undergoes surgical alterations and intense training to mimic Brice’s appearance, mannerisms, and routine down to the smallest gesture. Reese becomes Brice in secret, a living substitute who must inhabit the dead man’s role. The transition is meticulous, and the team works to ensure the deception remains flawless from the cockpit to the landing site, where the press coverage is carefully managed so the public never learns the truth about the swap.
As Reese steps into Brice’s life, he is introduced to Gail Randolph, Brice’s wife, Susan Clark who now confronts the bizarre real-life replacement living in her home. The emotional terrain grows thorny as Reese faces a difficult moral test: to stay true to Brice’s mission might require distance and restraint, but the unfamiliar intimacy of being with a wife who believes he is her husband pulls at his sense of identity. The cover strains under the weight of genuine human feeling—Reese finds himself wrestling with guilt, attraction, and the fear of discovery, while Gail senses that something is off but cannot quite place what it is.
Meanwhile, the investigation inside NASA slowly uncovers what really happened on Mars. Dr. Wylie, Richard Anderson, and others pore over the data, weighing whether to reveal the truth and face the political and logistical consequences. The agency reaches a point where they would like to end the masquerade, but Reese and Gail, bound by circumstance and loyalty to the memory of Brice, decide to continue the charade for now. They cultivate a fragile partnership built on the rumor of Brice’s memory living on through this living substitute, a precarious balance between deception and devotion.
The situation takes an unexpected turn when a young boy asks for an autograph from Brice, unintentionally delivering a message that the Soviets have launched their own mission to Mars. NASA chooses not to warn the rival program, a decision that weighs heavily on Reese and Gail. Faced with this new threat and the moral unease of their own duplicity, they come to a climactic choice: rather than perpetuating the lie, they resolve to reveal the truth about Brice Randolph and the replacement when the moment is right, hoping to avert a future catastrophe and to honor the integrity of space exploration. In the end, the story probes themes of identity, duty, and the ethical price of keeping secrets in the high-stakes world of interplanetary travel.

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