
In Marvel’s Thunderbolts, Yelena Belova is seen completing a mission under Valentina’s orders. But there’s one hidden detail in the lab scene that most fans completely missed. If you look closely behind Yelena, you’ll spot shadows—scientists who were captured in the Void realm. These aren’t just background extras… they’re tied to one of the most powerful Marvel characters: Robert Reynolds, aka the Sentry.
This could be our first clue about the Sentry’s creation and the dark experiments that led to his transformation. Marvel may have secretly set up Sentry’s arrival in the MCU, and Yelena unknowingly destroyed the evidence. This Thunderbolts easter egg connects directly to the Marvel Cinematic Universe’s next big twist.
If you’re a fan of Thunderbolts, Sentry MCU theories, or deep dives into Marvel hidden details, this video is for you.
Discover what even the biggest fans missed.
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