Fan Casting Jack Falsworth in George Nolfi's Captain America

During World War I, Montgomery, Baron Falsworth, took on the heroic role of Union Jack to stand as the hero of modern Great Britain, opposing his traitorous brother John, who had become a vampire and worked for the Germans as Baron Blood. His son, Brian, took over the role during World War II, working with Captain America, the original Bucky, the android Human Torch, and Namor the Sub-Mariner, among others, as a member of the Invaders. At one point, Brian's sister Jacqueline was bitten by Baron Blood and given an ad-hoc blood transfusion from the various Invaders, including the synthetic "blood" of the Human Torch, gaining speed powers, whereupon she took the costumed identity of Spitfire (named after the fastest British airplane of the time). Following the end of World War II, Brian only occasionally took action as Union Jack, while Jacqueline retired to the quiet life of the aristocracy. Brian inherited the title of Baron Falsworth in the fifties when his father passed away, and continued to act as Union Jack for another two decades. Brian intended that his son, William, carry on his heroic legacy, but William never pursued the training, instead becoming embroiled in politics, including a number of scandals. William and his wife, Elizabeth, were killed in a boating accident mere months after their only daughter, named Jacqueline after her heroic great-aunt, was born. Having kept in touch with Captain America, Brian insisted that the Captain be Jacqueline's godfather.