(written from a Production point of view)
Gwaltney's first television appearance came in a 1987 episode of Spencer: For Hire, a series on which future Star Trek: Deep Space Nine star Avery Brooks was a regular. The episode Gwaltney appeared in also co-starred fellow Star Trek guest actor Thomas Kopache. He went on to become a regular on the soap opera As the World Turns from 1993 through 1995. He also appeared in several episodes of Law & Order (including one with Josh Pais) and its various spin-off shows.
In 1996, he starred with Keith Szarabajka in the short-lived drama Profit, and in 1998, he guest-starred in an episode of Homicide: Life on the Streets, starring Michelle Forbes. Other TV credits include episodes of Sex and the City (starring Kim Cattrall), CSI: Miami, and CSI: NY.
His film credits include Casualties of War (1989, with Vyto Ruginis, Steve Larson, and Sherman Howard), G.I. Jane (1997), and The Siege (1998). He also had a major supporting role in the 1990 drama Vital Signs, co-starring Jeanne Mori, Tim Ransom, Angelo Tiffe, and Wallace Langham.
Other Trek connections
Additional film and TV projects in which Gwaltney appeared with other Star Trek performers include:
- Trial by Jury (1994 film) with Graham Jarvis, Ed Lauter, and Mike Starr
- Now and Again episode "Disco Inferno" (2000) with Gerrit Graham
- Providence episode "Syd in Wonderland" (2000) with Ed Begley, Jr. and Concetta Tomei
- Love Thy Neighbor (2002 film) with Wallace Shawn
- Judging Amy episode "Dancing in the Dark" (2004) with Bob Gunton
- Crossing Jordan episode "Justice Delayed" (2004) with Miguel Ferrer
- Blind Justice episode "Marlon's Brando" (2005) with Patrick Kilpatrick, Jeremy Roberts, and Saul Rubinek