Tristan Tait (born 2 August 1971, Santa Barbara, California) is an American actor, great-grandson of J. Lockard Martin. His career began on Roseanne (1988–1991) and has spanned over 20 credits. In film, he has appeared in This Boy's Life (1993), 28 Weeks Later (2007), The Dark Knight (2008), and Fantastic Beasts and Where to Find Them (2016). In voice work, he voiced PFC Daniel Argent in Battlefield 3 (2011).