Fan Casting Unknown Soldier in Untitled Batfamily Story

A former World War 2 veteran whose name is either forgotten or erased from time. All that is known about him is that he has a strange but familiar connection to Alfred, who reveals he used to know the man behind the bandages, but has no recollection of the mysterious soldier's original identity. Either way, he has a vendetta against the world for forgetting him, and targets Alfred, the last living survivor of their squadron, while also trying to recruit Red Hood due to the latter's close bond with Alfred despite his sadistic cruelty to criminals. It's also revealed that he may have been Calvin Rose's last living relative.