David Harbour’s time as Hellboy proved to be a one-and-done affair, but he managed to find comic book movie success shortly thereafter. The Stranger Things star debuted as Alexei Shostakov, a.k.a. Red Guardian, in 2021’s Black Widow , and then after voicing an alternate version of the character last year in What If… ? Season 3, he reprised Red Guardian onscreen on the 2025 movies schedule for Thunderbolts* . Now Harbour is in the midst of playing his MCU character once more for December 2026’s Avengers: Doomsday , and the actor opened up by how shocked he was to see the massive scale of this upcoming Marvel movie .

With a little over a year to go until Doomsday hits theaters, Harbour shed light on his experience working with directors Joe and Anthony Russo on what wil

See Full Page