Life Model Decoy
A Life Model Decoy (or LMD for short) is a S.H.I.E.L.D.-designed robot that duplicates all outward aspects of a living person. The owner can see through, speak through, and control everything the Life Model Decoy does. Nick Fury's Life Model Decoys are probably the most common in the Marvel Universe.
It is designed to function as an exact body double for VIPs. Their design is such that they mimic the subject's outer appearance (i.e., fingerprints, hair, all details of the skin), speech patterns, scent, iris and retina patterns, body language, thought patterns (to fool telepaths), and any other biological indicators. Aside from any invasive procedure or strong EMP, they are indistinguishable from the original.
Powers and abilities
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As an android, a Life-Model Decoy possesses all of the various superhuman attributes:
- Superhuman Strength - An LMD is super-strong and possesses strength beyond the human limit.
- Superhuman Speed - An LMD can run and move at speeds that are beyond human physical limits.
- Superhuman Durability - An LMD's construction makes them very durable.
- Superhuman Stamina - An LMD can exert itself well beyond a normal human's limit.
- Superhuman Agility - An LMD's agility, balance and coordination are enhanced to levels that are beyond natural human physical limits.
- Quick Repair - Nanites working within the LMD allow for self-repair similar to an enhanced Healing Factor.
Known Life Model Decoys
There were some known Life Model Decoys that were modeled after different people. Here are the ones that were seen:
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- 361 - 
- 391 - 
- 399 - 
- 442 - 
- 737 - 
- Annie - A female Life Model Decoy created and programmed by Bruce Banner to assist Red Hulk between missions.
- Chuck - A Life Model Decoy who was the driver for Red Hulk and Annie. He was destroyed by Black Fog.
- Glenn Talbot - A Life Model Decoy of the original Glenn Talbot, whose extensive programming led it to believe that not only was it alive, but that it was the real Glenn Talbot brought back from death. Surprisingly revealed to the readers to be an L.M.D. during the World War Hulks storyline when Red Hulk suddenly tore its head off its body.
- Joanie - A Life Model Decoy created by A.I.M. to infiltrate the youth culture in the 1970s. She later became an ally of Dimitrios.
- Maria Hill - Had a Life Model Decoy during her tenure as the Director of S.H.I.E.L.D.
- Max Fury - An enhanced S.H.I.E.L.D. Life Model Decoy of Nick Fury that was stolen by Scorpio. It later took on the name of Max Fury when it was recruited into the Shadow Council.
- Thunderbolt Ross - A Life Model Decoy of General Thaddeus "Thunderbolt" Ross which replaced the General to cover up his transformations into Red Hulk.
- Tony Stark - He used a number of Life Model Decoys.
- Valentina Rychenko - 
In the "Heroes Reborn" universe, Captain America was brainwashed into quietly living in the suburbs, for his protection, and his wife and son were LMDs. Nick Fury used an LMD for the captain during secret missions.
In other media
- In the The Avengers: Earth's Mightiest Heroes episode "Breakout, Part 2", a Life Model Decoy of Nick Fury is destroyed by Graviton while taking the place of the actual Nick Fury. In "Secret Invasion", the "Maria Hill" that the Skrulls executed was a Life Model Decoy (a scene taken directly from the comic book storyline of the same name).
- In the Iron Man: Armored Adventures episode "Extremis", a Life Model Decoy of Nick Fury was used to confront ex-S.H.I.E.L.D. Agent Mallen and ended up destroyed.
- The Life Model Decoys appear in the Ultimate Spider-Man episode "The Man-Wolf". Here, they are used to train Spider-Man and his team and are able to roughly duplicate the powers of whoever they are disguised as. In "Game Over", Spider-Man's team fights standard Life Model Decoy in the first round (Spider-Man referring to that round as a game of "Whack-A-Dummy") and deadlier Life Model Decoy models in the second round. This training was to prepare Spider-Man's team to take on Arcade. When Captain America and Spider-Man arrive in Madripoor, they find the entrance to Arcade's lair where Wolverine is fighting Life Model Decoy ninjas. They discover that Arcade had stolen some of S.H.I.E.L.D.'s Life Model Decoys when the heroes defeated their Life Model Decoy counterparts. Arcade then unleashes multiple Hulk Life Model Decoys, which are defeated by Captain America and Wolverine. Captain America, Spider-Man, and Wolverine leave to the next area when Arcade unleashes multiple Red Hulk Life Model Decoys on them.
- The Life Model Decoys appear in the Avengers Assemble episode "Avengers Disassembled." A bunch of Life Model Decoys made up the S.H.I.E.L.D. drop team that accompanied Captain America when it comes to assisting the Avengers and Spider-Man into fighting an Ultron-controlled Super-Adaptoid. Unfortunately for Captain America, Ultron hacked into the communications and told the drop team to deploy prematurely. Ultron takes the opportunity to convert the Life Model Decoys to serve him causing the Avengers and Spider-Man to destroy them. Ultron later used a Life Model Decoy to serve as a diversion by having it pose as Ultron so that Ultron can hack into J.A.R.V.I.S. and Stark Tower. In "The Ultron Outbreak," the Life Model Decoy that Ultron corrupted has taken his Ultron nano-virus corruption to other parts of the world.
- Life Model Decoys appeared in the Nick Fury: Agent of S.H.I.E.L.D. film.
- In The Avengers, Tony Stark tries to avoid a phone call from S.H.I.E.L.D. Agent Phil Coulson by claiming in an answering machine/voice-mail fashion that the caller has reached Tony Stark's Life Model Decoy instead.
- In Spider-Man: Friend or Foe, the Helicarrier's computer tells Spider-Man during the Cairo, Egypt briefing that she had lied by stating that the real Nick Fury was a Life Model Decoy.
- Life Model Decoys of Nick Fury appear in Marvel: Ultimate Alliance 2.
- Hulk Vol. 2 #37
- Hulk Vol. 2 #29
- Hulk Vol. 2 #38
- Wolverine/Nick Fury: Scorpio Rising #1
- Hulk Vol. 2 #30.1
- Parker Hounds "Hulk" with an Army of Adversaries
- Secret Avengers #32
- Fear Itself: Black Widow #1
- Fear Itself #7.1
- Hulk Vol. 2 #33
- Hulk Vol. 2 #14
- Hulk Vol. 2 #23
- Iron Man: The Iron Age #2
- Iron Man vol.1 #17 (September 1969)
- Iron Man and Philosophy: Facing the Stark Reality
- Avengers A.I. #2
- Defenders #46
- Secret Avengers #1
- Marvel Graphic Novels and Related Publications: An Annotated Guide to Comics, Prose Novels, Children's Books, Articles, Criticism and Reference Works, 1965-2005
- Villains for Hire #1
- Captain America #108
- Captain America #106
- Captain America and the Struggle of the Superhero: Critical Essays
- US Icons and Iconicity
- Avengers #145
- Incredible Hulk #600
- X-Force #110
- Teasers & Cameos (The Avengers)
- Life Model Decoy at Marvel Wiki
- Life Model Decoy at Comic Vine
- Nick Fury's Life Model Decoy at Marvel Appendix