Dum Dum Dugan was a member of the Howling Commandos during World War II and is currently with S.H.I.E.L.D.
Sergeant Timothy "Dum Dum" Dugan was a non-commissioned officer and a member of the elite special unit of Allied soldiers formed in World War II known as the Howling Commandos. He fought alongside Captain America and Bucky Barnes and was key in defeating HYDRA and ending the war.