The Lewis Pullman's "Bob" character seems to be a regular human at first, but he's bound to become one of the most powerful MCU characters when he transforms into Sentry in Thunderbolts*.
Thunderbolts*' trailers and promotional material have teased Sentry's full power. As suggested by the trailers, Sentry will attack the Thunderbolts atop Valentina Allegra de Fontaine's tower and then proceed to attack innocent civilians on the street. Sentry possesses telekinesis, super strength, and flight powers, as well as a form of umbrakinesis — the ability to manipulate shadows and darkness. Stopping Sentry will be an incredibly difficult challenge for the MCU's Thunderbolts, not only because of Sentry's unparalleled power, but also because the villain will attack them directly, unlike other powerful MCU villains.
The Thunderbolts Probably Won’t Fight An Army Of Disposable Secondary Villains Before Facing The Main Antagonist
Sentry Seems To Be The Thunderbolts' Sole Enemy In Their Movie's Third Act
According to Thunderbolts*' trailers, the Thunderbolts will fight a rampaging Sentry in Manhattan, where Sentry will use his umbrakinesis to turn pedestrians into shadows. Notably, Sentry appears to be the only antagonist in Thunderbolts*' main battle. Sentry doesn't have any henchmen or lackeys to distract the Thunderbolts, and Valentina Allegra de Fontaine seems to be allowing Sentry to go rogue without giving him any kind of .

Marvel Just Quietly Killed The Best Sentry Theory & Created An Origin Problem For The MCU's New God-Tier Hero
Sentry will soon make his MCU debut in Thunderbolts*, but Marvel needs to carefully explain his origin story after Captain America: Brave New World.
Marvel villains usually have an army or a group of underlings who serve as the heroes' warm-up before the title fight. Loki had the Chitauri during the Battle of New York in The Avengers, Ultron had his Ultron Sentries in the Battle of Sokovia in Avengers: Age Of Ultron, and Thanos had the Black Order in Avengers: Infinity War and Avengers: Endgame. Other powerful villains like Malekith, Kaecilius, Gorr the God Butcher, Namor, and Kang the Conqueror have led armies, or at least a posse, of unnamed acolytes who inevitably become cannon fodder for the heroes.
Thunderbolts*’ Lack Of Secondary Villains Highlights Sentry’s Incredible Power
Sentry Doesn't Need Any Followers To Be A Huge Threat To Make The Thunderbolts
Sentry is usually a very independent hero and villain in the comics. Robert Reynolds sometimes keeps his power under control long enough to earn himself a spot in the Avengers, and sometimes he leans on his dark alter ego long enough to find himself under the command of villains like Norman Osborn and Apocalypse. But on his own, Sentry is powerful enough to defeat heroes as powerful as Hulk, Thor, Ares, and Carnage. The MCU's Thunderbolts are no match for Sentry. Adding an army of secondary villains would be overkill.
With no army to turn against Sentry and seemingly no world-ending device to sabotage, it seems virtually impossible for the Thunderbolts to harm him, let alone capture him or kill him.
Sentry's unmatched power poses a question, however. With no army to turn against Sentry and seemingly no world-ending device to sabotage, it seems virtually impossible for the Thunderbolts to harm him, let alone capture him or kill him. The Avengers neutralized Loki's Chitauri army by blowing up their mothership, stopped Ultron by destroying every Ultron Sentry, and defeated Thanos by performing a second Snap. Doctor Strange defeated Kaecilius by convincing Dormammu to take him to the Dark Dimension, and Cassie Lang turned the tide against Kang by convincing MODOK to rebel against his boss. The Thunderbolts apparently have nothing to use against Sentry.
Thunderbolts* May Have A Secret Antagonist The Trailers Still Haven’t Showed
The Thunderbolts May Have To Fight The Void Too
Robert Reynolds actually has two alter egos: the dangerous but rather kind-hearted Sentry and the Dark Sentry — the latter of which is a Void-possessed Sentry driven by the evil entity's wrath. The Void is an immortal and indestructible force bonded to Robert Reynolds. When Robert isn't able to keep it at bay, the Void uses Sentry's power to wreak havoc, often turning the heroic Sentry into a killing machine, but sometimes exiting his body to show its true appearance. In Thunderbolts*, the titular team might struggle to fight Sentry, only for the Void to come out of Sentry's body afterward.

I Can't Believe Captain America: Brave New Worlds's Ending Made My Wildest Thunderbolts* Theory More Likely To Happen
Captain America: Brave New World's ending and post-credits scene may have an exciting implication for Thunderbolts*' potentially dark aftermath.
Sentry's powers in the Thunderbolts* trailers suggest the Void is holding a tight grip on Sentry's mind during the events of the movie, but whether the entity will appear in its real form or not is unknown. If the MCU's Sentry already seems like an unstoppable villain, the Void's surprise appearance in Thunderbolts* would likely be a guaranteed death sentence for the anti-hero team. While the MCU's first Thunderbolts could die in their first team-up movie, they still need to stop Sentry or the Void before their demise. How exactly they'll achieve it will only be answered when Thunderbolts* hits theaters.

Thunderbolts*
- Release Date
- May 2, 2025
- Runtime
- 127 minutes
- Director
- Jake Schreier
- Writers
- Eric Pearson, Joanna Calo
- Producers
- Kevin Feige
Cast
- Yelena Belova
- Bucky Barnes
- Franchise(s)
- Marvel Cinematic Universe
- Budget
- $180 million
- Studio(s)
- Marvel Studios
- Distributor(s)
- Walt Disney Studios Motion Pictures
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