In the late 1990s, Paul Jenkins and Rick Veitch developed an idea by Jenkins about "an over-the-hill guy, struggling with an addiction, who had a tight relationship with his dog" into a proposal for Marvel Comics' Marvel Knights line. Jenkins conceived of the character as "a guardian type, with a watchtower", and came up with the name "Sentry" (after previously considering "Centurion"). Veitch suggested that the character could be woven into the history of the Marvel Universe, with versions of the character from the 1940s onwards depicted in artistic styles matching the comics of each period. In 1947, Project: Sentry was launched, but soon it disintegrated into multiple sub-projects with almost zero government control. Professor Cornelius Worth, a project-in-charge, completed the formula 10 years later in New York.[2][3] Veitch also suggested that due to some cataclysmic event, all recollection of the Sentry would have been removed from everyone's memory (including his own). Jenkins and Veitch decided that they would create not only a fictional history for the Sentry within the Marvel Universe, but also a fictional publication history in the real world, complete with imaginary creators ("Juan Pinkles" and "Chick Rivet", anagrams of Jenkins and Veitch's names). Jenkins pitched the concept to Marvel Knights editor Joe Quesada. Quesada decided to commission a miniseries written by Jenkins with art by Jae Lee, with whom Jenkins had previously worked on an Inhumans miniseries.[4]
Publication
The Sentry was first introduced in his 2000 eponymous Marvel Knights miniseries written by Paul Jenkins with art by Jae Lee.[5] The miniseries ran for five issues and then segued directly into a series of flashback one-shots in which the Sentry teamed up with the Fantastic Four, Spider-Man, Angel, and the Hulk. These one-shots led to The Sentry vs. the Void, an additional one-shot that wrapped up the story of the miniseries and one-shots. In 2005, writer Brian Michael Bendis reused the Sentry by making him a member of the New Avengers. The Sentry played a minor role in the first arc, Breakout (issues #1–6), and was the focus of the second arc, The Sentry (issues #7–10); Jenkins himself was featured as a character in the second one. Also in 2005, the Sentry received another miniseries, written by Jenkins and drawn by John Romita Jr., which ran for eight issues. The Sentry appeared in The Mighty Avengers as a member of that team, and later in Dark Avengers in a similar capacity, and as protagonist in The Age of the Sentry miniseries. He appeared as a regular character in the Dark Avengers series from issue #1 (March 2009) until the time of his death in the Siege limited series.
On March 6, 2018, it was announced that the character would be given an ongoing series written by Jeff Lemire and with art by Joshua Cassara and Kim Jacinto.[6] The series ended after five issues.
In 2024, a new Sentry miniseries was published. It introduced a new version of Sentry, Mallory Gibbs / Solarus, who gained Robert Reynolds' powers after his death during the "King in Black" event (2020).[7]
Civilian Bob Reynolds remembers that he is Sentry, a superhero whose "power of one million exploding suns" is derived from a special serum.[8][9] Realizing that his archenemy the Void is returning, Reynolds seeks out several prominent Marvel characters to warn them and to discover why no one remembers the Sentry.
Reynolds regains his memories of the Sentry and the Void after speaking with them and recalls how he previously worked with Angel, Spider-Man, Hulk, and the Fantastic Four. Meanwhile, the public remembers the Sentry, as does Reynolds' former sidekick, Billy Turner / Scout, who was scarred and lost an arm during an attack by the Void.
During the course of his investigation, Reynolds and Mister Fantastic discover that the Sentry and the Void are two halves of the same person. To save the world, Reynolds erased his memory from the mind of nearly every person on Earth, even his own. As other heroes prepare to face the Void, Reynolds works with Mister Fantastic and Doctor Strange to erase the public's memory of Sentry.[10]
Avengers
Reynolds reappears inside the supervillain prison the Raft, having been voluntarily imprisoned for murdering his wife Lindy Lee.[11] Eventually, the Avengers learn that Mastermind and the General, an enemy of Sentry, implanted a psychic virus in Reynolds' mind that impairs his memories. The Avengers track Reynolds down and show him that Lindy is alive.
Reynolds insists that the Void is coming to destroy them all, and that he cannot stop it. The Void arrives, acting as a separate entity from Reynolds, and attacks the Avengers. Emma Frost frees Reynolds from the virus and restore his memories, and the Sentry joins the Avengers.[12]
Unable to reconcile that he, Robert Reynolds, and the Void are the same being, the Sentry confronts his psychiatrist, Cornelius Worth, and begins switching rapidly between his personalities. It is revealed the serum which gave Reynolds his powers, was developed in a failed attempt to recreate the super-soldier serum that created Captain America, and that he stole it to use as a drug.[13]
Mighty Avengers
The Sentry is recruited by Iron Man to join the Mighty Avengers, the newest incarnation of the Avengers. While at first there is some dispute between the Sentry and Lindy, Robert joins the team while Iron Man and Ms. Marvel offer him assistance to treat his mental illness.[14] After defeating Ultron, Sentry returns to his Watchtower to find Lindy alive, having apparently resurrected her himself.[15]
Sentry joins the Dark Avengers, Norman Osborn's team of Avengers, stating that Osborn is helping him in return after Osborn confides his own mental deficiency in him.[16] However, the Void resurfaces and takes control of Robert Reynolds' body. Osborn flies to the Void, claiming that he was breaking their "deal", and has Bullseye murder Lindy Lee.[17]
During the 2010 storyline "Siege", Sentry is pitted against the Avengers and destroys Asgard at Osborn's request. The Void then takes control and kills Ares.[18][19] After defeating the Avengers, Sentry reverts to his human form and allows Thor to kill him.[20]
Resurrection
The Sentry is resurrected by the Apocalypse Twins, who transform him into a Horsemen of Death.[21] After the defeat of the Apocalypse Twins, the Sentry takes the dead body of the Celestial Executioner and offers to take it into deep space, far from Earth.[22]
It is later revealed that Doctor Strange created a pocket dimension where Robert Reynolds can fight the Void with Scout and his Corgi Watchdog, preventing the Void from controlling him in the real world. Unbeknownst to him, Scout is plotting to replace Reynolds as Sentry and takes the Sentry formula, gaining his powers. Scout battles Reynolds, but is defeated and killed when Reynolds decides to stop fighting the Void and merge with him.[23]
Death and legacy
During the "King in Black" storyline, Sentry is summoned by the Avengers to fight Knull. He attempts to fly Knull into space, as he had done to Carnage, only for Knull to break free, kill Sentry by tearing him in half, and absorb the Void.[24] Mallory Gibbs and five other civilians acquire Sentry's powers, with Mallory later absorbing the powers into herself. She agrees to be arrested by Misty Knight until she can control her powers. Once she controls her powers, she decides to go by the new moniker Solarus.[25]
Powers and abilities
Sentry
The Sentry's powers derive from a variant of the Super-Soldier Serum that "moves his molecules an instant ahead of the current timeline."[26][27]
Sentry's exact abilities and their limits are unknown. He is shown to possess immense strength,[28][29][30] durability,[31][32][33] speed,[34] and senses. He can absorb and project vast amounts of energy,[35] capable of harming even the Hulk. The Sentry has also demonstrated the ability to teleport himself in a blinding flash of light.[36]
Void
Robert Reynolds projects an entity as a dark side effect of his powers.[37] It has been claimed that for every benevolent act the Sentry performs, the Void corresponds with attempting an act of malevolence. The Void possesses several abilities that the Sentry does not, including the ability to create destructive storms and tendrils that attack the mind and force others to experience visions of the past and future.[citation needed]
Accolades
In 2015, Entertainment Weekly ranked Sentry 44th in their "Let's rank every Avenger ever" list.[38]
In 2017, Comic Book Resources (CBR) ranked Sentry 2nd in their "15 Most Overpowered Avengers" list.[39]
In 2017, Den of Geek ranked Sentry 10th in their "Guardians of the Galaxy 3: 50 Marvel Characters We Want to See" list.[40]
In 2018, CBR ranked Sentry 4th in their "25 Fastest Characters In The Marvel Universe" list.[41]
In 2021, Collider ranked Sentry 7th in their "20 Most Powerful Marvel Characters" list.[42]
In 2021, CBR ranked Sentry 1st in their "Marvel: The 10 Strongest Male Avengers" list.[43]
In 2022, Screen Rant included Sentry in their "10 Most Powerful Avengers In Marvel Comics" list[44] and in their "X-Men: 10 Most Powerful Horsemen Of Apocalypse" list.[45]
In 2022, Sportskeeda ranked Sentry 5th in their "10 most overpowered superheroes in the Marvel Universe" list.[46]
In 2022, CBR ranked Sentry 1st in their "8 Fastest Avengers" list[47] and 2nd in their "10 Scariest Avengers" list.[48]
David Harth of CBR.com ranked the Sentry comic book series 10th in their "10 Best Things About Marvel Comics From The 2000s," writing, "The Sentry told the story of the forgotten hero, a story about a man with too much power wrestling with his own demons and hidden history as one of Marvel's greatest superheroes. It was a great way to kick off the decade for the publisher."[50] Rosie Knight of Nerdist included the Sentry comic book series in their "8 Must-Read Marvel Knights Stories," asserting, "This meta-text on superheroes from The Inhumans‘ Jae Lee and Paul Jenkins is one of the more unique takes that Marvel Knights had to offer, focusing on a middle aged man named Bob Reynolds who one day remembers he is in fact a hero named Sentry. This miniseries follows Bob as he attempts to warn other Marvel characters about the return of his foe, whilst also figuring out why no one can remember his superhero alter-ego. If you're not aware of the Sentry, then the big reveal here will be a real gut punch as Lee and Jenkins create a seminal Sentry story in just five issues."[51]
Joshua Davison of Bleeding Cool wrote, "Sentry #1 is another excellent self-conscious superhero title from Jeff Lemire, and it does so without going fully meta, which is an overused tactic in modern comics. The story is compelling, and Bob Reynolds is made to be an interesting character to follow. This one gets a recommendation. Give it a read."[61] Adam Barnhardt of ComicBook.com gave Sentry #1 a grade of 5 out of 5, saying, "Lemire's ability to write the internal conflicts his protagonists face is second to none and after his iconic run on Moon Knight, a comic with Robert Reynolds was a long time coming. He's able to craft tales where the readers struggle to separate fact and fiction, yet everything eventually falls into place, and that's exactly the type of writer a character like Robert Reynolds needs. Lemire and The Sentry are a match made in heaven."[62]
Other versions
Age of Apocalypse
A zombified alternate universe variant of Sentry from Earth-295 appears in Age of Apocalypse as a member of the Black Legion.[63]
Age of Sentry
An alternate universe variant of Sentry appears in Age of Sentry.[64]
Alternate universe variants of the Sentry appear in What If:
In What If the Skrulls succeeded in their Secret Invasion?, Sentry works with the Skrulls and the Thunderbolts until he is killed by Thor.[71]
In What If Osborn Won Siege?, Sentry kills Ares and several heroes before Doctor Doom reveals Bullseye killed his wife Lindy in an attempt to turn him against Norman Osborn. However, the Void takes control, kills Doom and Osborn, among others, and destroys Earth.[72]
Robert "Bob" Reynolds as the Sentry and the Void appears in the Marvel Cinematic Universe (MCU) film Thunderbolts* (2025), portrayed by Lewis Pullman as an adult and by Clayton Cooper as a child.[73] This version gained his powers from Valentina Allegra de Fontaine and the O.X.E. Group after volunteering for their experimentation due to having developed a drug addiction. Initially intending for him to replace the Avengers, his poor mental health leads to him becoming the Void, causing everything to start being absorbed into a growing darkness until the Thunderbolts talk him down and help him regain control.
Bob Reynolds / Sentry will appear in the upcoming MCU film Avengers: Doomsday (2026), portrayed again by Pullman.[74]
The Sentry will appear as a playable character in Marvel Mystic Mayhem, voiced by Dustin Rubin.
Merchandise
The Sentry and the Void received a figure in the Marvel Legends toy line via the Wal-Mart exclusive Giant-Man series, with an additional bearded variant also being available.
The Sentry and the Void received a figure from Hasbro.
The Sentry and the Void received a figure in the Avengers Infinite Series.
Music
The Sentry and the Void served as inspiration for the song "A Million Exploding Suns" by Horse the Band.[citation needed]
↑ "The Sentry". Rick Veitch. Archived from the original on February 18, 2012. Retrieved October 2, 2013.
↑ Brevoort, Tom; DeFalco, Tom; Manning, Matthew K.; Sanderson, Peter; Wiacek, Win (2017). Marvel Year By Year: A Visual History. DK Publishing. p.302. ISBN978-1465455505.
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