List

"It's over. Fury has released everything to the public." "Everything he knows about." "Herr Strucker, if they get word of our work here, if they find out we serve HYDRA..."

- HYDRA Doctor and Wolfgang von Strucker

The  HYDRA Doctor is a scientist who works for HYDRA.

Biography
The doctor worked in a secret research facility under Wolfgang von Strucker, performing experiments on various supernatural paraphernelia, including the Chitauri Scepter and superpowered twins, Quicksilver and Scarlet Witch.

After the destruction of Project Insight and the subsequent exposure of HYDRA's infiltration of S.H.I.E.L.D., the doctor became paranoid over the possibility of their work being discovered. However, Strucker assured him that their work would continue.

Allies

 * HYDRA
 * Wolfgang von Strucker
 * Scarlet Witch
 * Quicksilver

Enemies

 * S.H.I.E.L.D.
 * Nick Fury

Behind the Scenes

 * Henry Goodman was uncredited for his appearance in Captain America: The Winter Soldier.