Agent Axis
When a plane carrying three Axis spies was hit by lightning during World War II, the three men -- on German, one Italian, and one Japanese -- molded together into a single man. Agent Axis was born with the strength and knowledge of each spy combined, and went on to battle the Invaders many times before his death.

Asbestos Lady
Not a whole lot to tell. The Asbestos Lady's one and only power was wearing an asbestos costume, preventing fire to harm her. Don't ask me why she worse a cotton mask and let her hair hang down. Aren't they flammable too? Oh well. Anyhow, Asbestos Lady is responsible for the Human Torch and Toro meeting, when she took Toro's family hostage and threatened to shoot them. The Torch, watching and waiting from the distance, saved the family -- and met his future sidekick for the first time. She was later put in jail, and her fate after that is unknown.

Baron Blood
The evil Nazi vampire was originally Lord John Falsworth, brother of a rich and social Englishman Montgomery Falsworth (the original Union Jack). After the two battled in costume during World War I, John went into hiding until he suddenly 'emerged' again during the second World War -- and Baron Blood was born again. Fighting the Invaders in one of their coolest storylines, Blood crippled his brother's legs and died himself -- until he met up with Captain America at a later date, where he finally did meet his final resting place.

Baron von Strucker

Battle Axis

Blue Bullet

Brain Drain

Dr. Death

Frankenstein's Monster

Golem

Hitler

Human Meteor

Iron Cross

Lady Lotus

Master Man

Red Skull

Scarlet Scarab

Spider Queen

Strong Man

Teutonic Knight

The Face

U-Man

Volton

Warrior Woman