Dr. Myron MacLain is a fictional character in the Marvel Comics universe. He is generally credited as the creator of adamantium, as an attempt to replicate the accidental creation of the alloy used for Captain America's shield. A fictional character is any person who appears in a work of fiction. ... It has been suggested that Felicia (pseudonym) be merged into this article or section. ... The Marvel Universe is the fictional shared setting where most of the comic stories published by Marvel Comics take place. ... Adamantium is a fictional chemical substance and metal alloy in the Marvel Universe. ... Captain America, the alter ego of Steve Rogers (in some accounts Steven Grant Rogers), is a Marvel Comics superhero. ...

However several stories indicate the Japanese supervillain Kenji Oyama, Lord Dark Wind had managed to create adamantium prior to MacLain but kept it a secret. Oyama's daughter Lady Deathstrike has made a claim to owning the rights to the adamantium creation process because of it. Doctor Doom, one of the most archetypical supervillains. ... Lord Dark Wind (Professor Kenji Oyama) is a fictional character from Marvel Comics. ... Lady Deathstrike (real name Yuriko Oyama) is a fictional character, a comic book supervillainess in Marvel Comics and an occasional foe of the X-Men and Wolverine. ...