<P> Cumberbatch also portrays , uncredited , the villainous entity Dormammu . The actor suggested he take on the role to Derrickson , feeling that having the character be a `` horrific '' reflection of Strange would work better than just `` being a big ghoulish monster '' . The director agreed , elaborating that the casting implies that Dormammu does not have a normal physical form in his own dimension , and so is simply imitating Strange for their confrontation . To create the character , Cumberbatch provided motion - capture reference for the visual effects team , and his voice was blended with that of another uncredited British actor , whom Derrickson described as having `` a very deep voice '' . The producers also had Tony Todd record voice over for Dormammu as an alternative to Cumberbatch , but ultimately decided on using Cumberbatch for the voice . </P>
<P> Cumberbatch also portrays , uncredited , the villainous entity Dormammu . The actor suggested he take on the role to Derrickson , feeling that having the character be a `` horrific '' reflection of Strange would work better than just `` being a big ghoulish monster '' . The director agreed , elaborating that the casting implies that Dormammu does not have a normal physical form in his own dimension , and so is simply imitating Strange for their confrontation . To create the character , Cumberbatch provided motion - capture reference for the visual effects team , and his voice was blended with that of another uncredited British actor , whom Derrickson described as having `` a very deep voice '' . The producers also had Tony Todd record voice over for Dormammu as an alternative to Cumberbatch , but ultimately decided on using Cumberbatch for the voice . </P>
who does dr strange fight in the movie
who does dr strange fight in the movie
Dormammu
Dormammu