The X-Files (1993– )
11 user 5 critic

Young at Heart 

A criminal believed to have died in a prison years earlier wages a vendetta against Mulder.


Michael Lange


Chris Carter (created by), Scott Kaufer | 1 more credit »

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Episode complete credited cast:
David Duchovny ... Fox Mulder
Gillian Anderson ... Dana Scully
Dick Anthony Williams ... Agent Reggie Purdue
Alan Boyce ... Young John Barnett
Christine Estabrook ... Agent Henderson
Graham Jarvis ... NIH Doctor
Jerry Hardin ... Deep Throat
Robin Mossley ... Dr. Joe Ridley
Merrilyn Gann ... Prosecuting Attorney
Gordon Tipple ... Joe Crandall
William B. Davis ... CIA Agent
Courtney Arciaga Courtney Arciaga ... Young Child
David Petersen ... Older John Barnett
Robin Douglas ... Computer Tekkie


The man whom Mulder worked for before calls him to tell him of something weird, a robbery and a note left for him. When Mulder reads it, it's how a criminal whom he pursued 6 years ago would leave notes for him. Thing is the man died a few years ago in prison. But when more crimes occur Mulder wonders, if the man is really dead. And later someone calls Mulder and talks like the man but the voice is younger. Mulder goes to the prison where the man died and inmate says that on the night he died he was in the infirmary being treated for an infection to his hand and the doctor said he's dead but he saw he was alive and the doctor threatened him. Later Mulder's mentor is killed. Mulder later learns that the doctor who treated the man was working on a secret project to reverse the aging process. But he was so reckless that he was shun by the medical community. Mulder thinks the doctor was working on it and needed elderly test subjects like the criminal so he thinks he did it so the man is ... Written by

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TV-14 | See all certifications »

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Release Date:

11 February 1994 (USA) See more »

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Sound Mix:

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Did You Know?


Gillian Anderson was already pregnant in these episodes, although she did not show it yet. See more »


When agents Scully and Purdue are viewing the archived footage of the warehouse standoff, it is all a single wide shot, presumably from a security camera. At the end of the scene's dialog the camera pans back to the TV monitor, where the tape is on a freeze frame, but the shot has tightened up to a medium shot focusing on the relevant plot detail. See more »


Dr. Joe Ridley: I varied Barnett's treatment. Once I isolated the progeria receptors, I stumbled onto something quite unexpected... these same genes related to the production of myelin.
Scully: The material that insulates neurons in the body.
Dr. Joe Ridley: Yes. You see, myelin is not present in the very young and by reversing the effects of aging, I found, with Barnett, I was able to regulate the production of myelin. Myelin being the material that prohibits you or I from, say, regenerating a new hand if we were to have ours cut ...
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Referenced in Gone Home (2013) See more »


The X-Files
Written by Mark Snow
Performed by John Beal
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User Reviews

Salamander Hand Man!
14 April 2006 | by MuldernscullySee all my reviews

Young at Heart is another solid season one episode. I like the guest star character of Reggie Purdue and I liked the performance by the actor playing the young Barnett. What I thought was great were the phone conversations between Mulder and Barnett. Barnett has this cool, evil laugh that I can't describe in words. Another nice edition to this episode was Agent Henderson from the crime lab. She and Mulder exchange some double-entendres. Unfortunately, we do not see here again in the series. I think it would've been nice to have Agent Henderson pop up every once in awhile like Agent Pendrell does. I think Mulder's struggle with his past actions in this case for failing to shoot Barnett plays out beautifully. It certainly shows us how difficult it can be to be an FBI agent and the decisions they can face. The question is how Mulder will react when later faced with a similar crisis?

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