(written from a Production point of view)
John Prosky (born 18 April 1962; age 58) is an actor who played Brathaw in the Star Trek: Deep Space Nine fourth season episode "For the Cause" and Otrin in the Star Trek: Voyager seventh season episode "Friendship One".
Prosky has guest-starred in many other popular television shows. His roles include appearances in True Blood, Frasier, The West Wing, NYPD Blue, Agent Carter, Becker, Veronica Mars, Charmed, 24 (with his "For the Cause" fellow co-star Penny Johnson), The X-Files, JAG, ER, Judging Amy, and Grey's Anatomy. Prosky has appeared in the films A.I. Artificial Intelligence, Gods and Generals, The Phantom, The Nutty Professor, Hulk, Hidalgo, and Straight Outta Compton.