 Sullivan Stapleton plays Damien Scott, a former United States Delta Force operator who is familiar with the antagonists of the second series, and an acquaintance of John Porter. He is recruited by Section 20 to help Sergeant Michael Stonebridge find and rescue the kidnapped Porter. Stapleton describes Scott as cocky, rebellious and arrogant, and that it was good to have somebody like him in Section 20 because "he is the one that usually goes in first and takes the bullets, whereas Stonebridge arrives at the last minute and saves the day." The actor opined that Scott is chosen for the dangerous role because he is daring and does not have any immediate family members who rely on him. Of Scott and Stonebridge's working relationship, Stapleton said "they have a professional respect for each other" but start to annoy each other. When the actor first read the script for Project Dawn, he saw himself for the role as Scott. Because Stapleton is an Australian actor, he had to speak with an American accent throughout the series. He was wary whether he did it right because he barely worked with Americans on the show, but believed he did okay when HBO, the network that operated Cinemax, was satisfied with it. Stapleton has signed up for another Strike Back series should it be commissioned.
