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Sentry
Sentry-459 as depicted in Marvel Super-Heroes #13 (March 1968). Art by Gene Colan.
Publication information
Publisher	Marvel Comics
First appearance	Fantastic Four #64 (July 1967)
Created by	Stan Lee (writer) Jack Kirby (artist)
In story information
Type	Robot
Element of stories featuring	Kree

Sentry is a fictional character appearing in American comic books published by Marvel Comics. The character was created by Stan Lee and Jack Kirby in July 1967. It is one of series of giant humanoid robots called Kree Sentries built by the Kree. The Sentry has also appeared in animated adaptations.

This section needs expansion. You can help by adding to it. (September 2016)

The Kree Sentries first appeared in Fantastic Four #64 (July 1967) and were created by Stan Lee and Jack Kirby.

The Sentries' main purpose is to stand guard over military outposts and depots throughout the Kree Empire. Sentry-459 accompanied a Kree scientific party that journeyed to Earth to experiment on sub-humans (which in turn created the Inhumans). When the Kree left Earth, Sentry-459 remained to monitor Inhuman progress, so that the Kree could later use them as a militia force. Sentry-459 remained inert but observing until activated by the superheroes the Fantastic Four, who fought it to a standstill. Considering itself defeated when the Fantastic Four escaped, the Sentry sent a signal to the Kree before deactivating.^[1]

The Sentry was then transported by the U.S. Army to Cape Canaveral, where it was reactivated by the Kree Colonel Yon-Rogg, the leader of the Kree expedition then investigating Earth. Yon-Rogg hoped the Sentry would kill the hero Captain Marvel, another member of expedition. Mar-Vell, however, managed to defeat it.^[2]

Ronan the Accuser later reactivated the Sentry and used it in an attempt to reverse the course of evolution on Earth, but it was once again defeated by Mar-Vell.^[3] The Kree agents attempt to retrieve the Sentry but are driven off by spy agency S.H.I.E.L.D. The Sentry was seen again when activated by the Super-Adaptoid, who used the robot as part of his team Heavy Metal in a bid to destroy the Avengers.^[4] It returned in the Blackwulf series, having been found by Ultron,^[5] and joins the Underground Legion^[6] but was eventually destroyed in the series finale.^[7][8]

Sentry-459 is not the only Kree Sentry of the Kree Empire. The following are also Kree Sentries:

Another Sentry - designated 9168 - was encountered by the Fantastic Four on the Moon. Only six feet tall, this Sentry was programmed to prevent any space travelers from Earth from finding the remains of a hidden Kree city on the Moon. The Fantastic Four battle and destroy the Sentry via a remote destruct mechanism.^[9]

This 30-foot (9.1 m) tall Sentry was stationed in an unmanned supply depot/surveillance post on the planet Uranus. It was destroyed by a group of Eternals led by Uranos, sparking a war with the Kree.^[10]

This Sentry only appears once, and battles several members of the Imperial Guard before being damaged by the West Coast Avengers. The Sentry then self-destructs and destroys the outpost it was guarding.^[11]

This version aided the Kree when their "Lunatic Legion" attacked Earth. It was defeated by Iron Man.^[12]

• Sentry-459 appears in the Fantastic Four episode "The Sentry Sinister", voiced by Mark Hamill.^[13]
• The Kree Sentries appear in the Fantastic Four: World's Greatest Heroes episode "Trial by Fire".^{[citation needed]} These versions are floating spherical robots.
• The Kree Sentries and Sentry-459 appear in The Avengers: Earth's Mightiest Heroes.^[14] This version of Sentry-459 was created to assess Earth's inhabitants and is equipped with a Nega-Bomb.
• The Kree Sentries appear in the Avengers Assemble episode "Captain Marvel".^{[citation needed]}

• A Kree Sentry appears as an assist character in Avengers in Galactic Storm.^{[citation needed]}
• Kree Sentries appear in Marvel: Avengers Alliance Tactics.^{[citation needed]}
• A Kree Sentry appears in Marvel: Avengers Alliance 2.^[15]
• Sentry-459 appears in Lego Marvel Super Heroes 2.^[16] After Maximus allies with the Kree, he uses a Sentry to guard Attilan's Royal Palace before Black Bolt and Medusa fight it to get inside. In a bonus mission, Morgan le Fay summons Sentry-459 to battle King Arthur and Merlin, but it is defeated.^[17]
• A Kree Sentry appears in Marvel's Avengers.^[14] Buried underneath San Francisco Bay, the Avengers unknowingly unearth it due to their new Helicarrier's Terrigen crystal power source until Captain America destroys the Helicarrier. Five years later, MODOK activates and merges with the Sentry to kill the Avengers, only to be defeated by Kamala Khan. Following the battle, the Sentry launches a beacon into space.

• Sentry 372 at The Appendix to the Handbook of the Marvel Universe
• Sentry 459 at The Appendix to the Handbook of the Marvel Universe
• Kree Sentries on Marvel Database, a Marvel Comics wiki