In the hospital, Dr. Donald Blake is called down to the E.R. and a blonde doctor with a cane appears. Donald Blake was the human identity of the superhero and Norse god Thor.
At the end of the feature, Wong mentions a lady named Clea to Dr. Strange. In the comics, Clea was Dormamu's niece, who eventually became Dr. Strange's wife.
When the film was dubbed in Danish, Lars Mikkelsen was the voice of Stephen Strange. Lars' brother Mads Mikkelsen would star in Doctor Strange (2016) as Strange's nemesis Kaecilius.
In the comics, Dr Strange had a little sister named Donna. She appears in this film, renamed April.