Spitfire (Lady Jacqueline Falsworth Crichton) is a fictional character, a superhero in the Marvel Comics universe and was introduced as a member of the World War II era Invaders superhero team. Jacqueline "Jackie" Falsworth was born in Maidstone, England, and is the daughter of the original Union Jack (and the sister of Union Jack II). As a teenager during World War II, she met the superhuman team the Invaders. Baron Blood attacked her, and the original Human Torch rescued her. She was revealed to have been bitten by Baron Blood, who abducted her again; this time she was rescued by Captain America.
