Marvel’s upcoming Thunderbolts movie is still shrouded in mystery, but we've finally gotten our first good look at the project thanks to the Thunderbolts teaser trailer. It doesn't reveal a lot about the plot of this MCU team-up.

Thanks to its main characters, Thunderbolts* is more of a sequel to the MCU's Phase 4 than Captain America 4, and it even looks better.

The film, bringing together a “rag-tag” bunch of anti-heroes from across the MCU, is set to be an interesting bridge between the ill-fated Phase 5 and the upcoming exploits of both Fantastic Four and X-Men; titles that Disney+ garnered the rights to and franchises that look to be the basis of the MCU going forwards.

That “more” includes “Bob,” seen above at the 1:45 mark, who is portrayed by Lewis Pullman (also a Bob in Top Gun: Maverick) and must have more to his identity, right? You know it. Bob is short for Robert Reynolds, a.k.a. the Sentry. He was reportedly going to be portrayed by Steven Yeun, who later exited due to scheduling conflicts.

The first trailer for the MCU's "Thunderbolts*" has arrived, and with it comes Bob. But who is this unassuming character, and why does he scare Marvel fans?