Sergeant Timothy "Dum Dum" Dugan was a non-commissioned officer and a member of the elite special unit of the Allied soldiers formed in World War II known as the Howling Commandos. Having been rescued from a HYDRA prison camp with other soldiers, he was recruited into the newly formed Howling Commandos and had fought alongside Captain America and Bucky Barnes. During their missions, Dugan and the Commandos became key in ending the war, helping to defeat Red Skull as well as Werner Reinhardt and allowing the Allied forces to finally claim their final victory.

As Captain America was seemingly killed during a mission during World War II, Dugan took command of the Howling Commandos, leading them into many new covert missions to keep the world at peace in the wake of the war while recruiting new members such as Junior Juniper and Happy Sam Sawyer. He remained close to many of his fellow soldiers who he had fought with during the war, including Howard Stark and Peggy Carter, who had since formed the SSR, and was willing to work with them on whatever mission they needed him for in order to keep the entire world safe