The Tri-Sentinel is a fictional robot

Robot

A robot is a mechanical or virtual intelligent agent that can perform tasks automatically or with guidance, typically by remote control. In practice a robot is usually an electro-mechanical machine that is guided by computer and electronic programming. Robots can be autonomous, semi-autonomous or...

 who has appeared in the superhero comics of Marvel Comics

Marvel Comics

Marvel Worldwide, Inc., commonly referred to as Marvel Comics and formerly Marvel Publishing, Inc. and Marvel Comics Group, is an American company that publishes comic books and related media...

.

Acts of Vengeance

The Tri-Sentinel's first appearance was in Amazing Spider-Man #329, which followed on directly from the Acts of Vengeance

Acts of Vengeance

"Acts of Vengeance" is a comic book crossover storyline that ran through several titles published by Marvel Comics from December 1989 to February 1990.-Publication history:...

 storyline. In that storyline, several supeheroes including Spider-Man

Spider-Man

Spider-Man is a fictional Marvel Comics superhero. The character was created by writer-editor Stan Lee and writer-artist Steve Ditko. He first appeared in Amazing Fantasy #15...

, Captain America

Captain America

Captain America is a fictional character, a superhero that appears in comic books published by Marvel Comics. The character first appeared in Captain America Comics #1 , from Marvel Comics' 1940s predecessor, Timely Comics, and was created by Joe Simon and Jack Kirby...

, Thor, Iron Man

Iron Man

Iron Man is a fictional character, a superhero in the . The character was created by writer-editor Stan Lee, developed by scripter Larry Lieber, and designed by artists Don Heck and Jack Kirby, first appearing in Tales of Suspense #39 .A billionaire playboy, industrialist and ingenious engineer,...

, and Cloak and Dagger

Cloak and Dagger (comics)

Cloak and Dagger are a fictional comic book superhero duo in the . They were created by writer William "Bill" Mantlo and designed by artist Edward Hannigan.-Publication history:...

 came together to fight the Asgardian trickster god Loki

Loki (comics)

Loki is a fictional character, a supervillain that appears in publications by Marvel Comics. He is the adoptive brother and archenemy of the superhero Thor. He is based on the being of the same name from Norse mythology...

. After Loki's defeat at the hands of Thor

Thor (Marvel Comics)

Thor is a fictional superhero who appears in publications published by Marvel Comics. The character first appeared in Journey into Mystery #83 and was created by editor-plotter Stan Lee, scripter Larry Lieber, and penciller Jack Kirby....

, Loki engaged in a final act of vengeance by creating a giant robot known as the Tri-Sentinel. He did this by merging three Sentinel

Sentinel (comics)

Sentinels are a fictional variety of mutant-hunting robots, appearing in the Marvel Comics Universe. They are usually portrayed as antagonists to the X-Men. Created by Stan Lee and Jack Kirby, they first appeared in The X-Men #14 .According to Marvel canon, Sentinels are programmed to locate...

s together. The Tri-Sentinel was sent by Loki to attack a nuclear power plant and thereby destroy New York City

New York City

New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...

. It was defeated by Spider-Man

Spider-Man

Spider-Man is a fictional Marvel Comics superhero. The character was created by writer-editor Stan Lee and writer-artist Steve Ditko. He first appeared in Amazing Fantasy #15...

, who at that time possessed the powers of the Captain Universe

Captain Universe

Captain Universe is a disembodied superhero in Marvel Comics' universe who was created by Bill Mantlo and Michael Golden, and first appeared in Micronauts vol. 1 #8. It is the guardian and protector of Eternity...

 entity.

The Life Foundation

In a subsequent Spider-Man storyline, the villainous Life Foundation gathered the remains of the Tri-Sentinel and rebuilt it to serve them and provide security for their clients. When Carlton Drake turned it on, it rejected the Life Foundation's directives and reinstated Loki's. Spider-Man and Nova

Nova (comics)

Nova is a fictional character, a comic book superhero in the Marvel Comics universe. Upon becoming a member of the galaxy's Nova Corps , the youth gained enhanced strength, flight, injury resistance, and a specialized uniform with life support.In May 2011, Nova placed 98th on IGN's Top 100 Comic...

 undertook to defeat the Tri-Sentinel. Nova used an aircraft-mounted magnetic cannon to slow it down, while Spider-Man penetrated to the inside of the Tri-Sentinel's armour, fought its automated internal defence systems, and opened a vibranium

Vibranium

Vibranium is a fictional metal that appears in the Marvel Universe. It is most commonly known as one of the materials used to construct Captain America's shield, but it is also noted for its connection to the Black Panther and his native homeland of Wakanda .-Publication history:Vibranium first...

container at the Tri-Sentinel's core, causing the Tri-Sentinel to melt before reaching a heavily-populated area.

External links

• Tri-Sentinel on the Marvel Universe Character Bio Wiki