

Actor portrait · TMDB ↗
Character viewing guide
Alexei ShostakovCharacter guide · David Harbour
A past brought back into the room.
Find a starting pointBehind the name
Meet Alexei Shostakov
David Harbour portrays Alexei Shostakov in Black Widow and the later catalog entries attached to this profile.
Official source · Disney Movies ↗Following Alexei Shostakov
Listen for the distance between Alexei’s account of himself and other people’s reactions. That contrast gives the family exchanges more texture than a list of achievements.
Alexei Shostakov, from the Marvel Cinematic Universe.
Your first watch
Where to start
Begin with Black Widow. The next linked guide is What If...?. Use each title’s guide for season and crossover context; the catalog below preserves smaller appearances as well.
- 01

Black Widow
2021 · Open the title guide ↗
- 02

What If...?
2021 · Open the title guide ↗
Current catalog
Doomsday context
David Harbour is listed among the announced performers for Avengers: Doomsday.
Read the cast sources ↗Follow the screen credits
Catalog appearances
6 entries · release order
These are the existing catalog records, including supporting roles, cameos and other formats. This list is not a required watch order or proof that every appearance shares one continuity. Future entries may change.
2021
- Black Widow
July 7, 2021
2024
- What If...?, Season 3
December 22, 2024 · Supporting
2025
- Thunderbolts*
April 30, 2025
- Marvel Zombies, Season 1
September 24, 2025
2026
- Avengers: Doomsday
December 16, 2026 · Supporting
2027
- Avengers: Secret Wars
December 15, 2027
Sources & context
About this profile
Profile information checked 2026-11-08. Viewing suggestions are editorial guidance. Appearance records and identity labels come from the existing catalog.
Disney Movies · Film synopsis and context ↗
TMDB · David Harbour portrait ↗
Background artwork: Black Widow. The portrait shows the performer.
How this catalog is put together ↗