 In May , Toby Jones entered final negotiations to play Arnim Zola . Iron Man director Jon Favreau said a younger Howard Stark would appear in the film , played by Dominic Cooper . Atwell revealed that Tommy Lee Jones would have a role in the film . By June , Neal McDonough was in talks to play Dum Dum Dugan . Four days later , he confirmed he was taking the part . The same day , Stanley Tucci joined the cast as Dr. Abraham Erskine , the scientist who created the super @-@ soldier serum . In November 2013 , McDonough revealed that he is signed to appear in multiple projects for Marvel , not limited to films . 
