Quill made his debut in the Vietnam War set Hamburger Hill playing the role of Pvt.
Joe Beletsky, following it up with roles in the films Listen to Me, Hiding Out, Next of Kin, and Argo.
[citation needed] Quill made numerous appearances in various television series including Miami Vice (episode 5x18), in 1989, ER in 1997, and a recurring role as Lt. Mason Painter in JAG.
[citation needed] He appeared in the Sliders episode, Prophets and Loss (1998).
He is survived by his son, and predeceased by his wife Lisa Casanova Quill, who had died at age 46, seven years before of breast cancer.