- J.T. was an avid was a Macintosh addict.
- ,b>J.T. co-wrote the movie version Idyllwild based on the online novel at The Sebar Literary site.
- J.T. had one son named John.
- J.T. was good friends with Kurt Russel and Goldie Hawn.
- J.T. also had an extensive career of appearing onstage in various plays.
- J.T. graduated from the University of Rhode Island.
- J.T.'s first major motion picture role was in the film Eddie Macon's Run.
- J.T. worked as a journalist, teacher, social worker, salesman, and restaurant manager before he decided, at age 30, to dedicate himself to acting.
- In 1997, J.T. & co. were nominated for the Screen Actors Guild Award for Outstanding Performance by a Cast
for: Sling Blade (1996).
- In 1998, J.T. was nominated for the Emmy for Outstanding Supporting Actor in a Miniseries or a Movie
for: Hope (1997).
- In 1994, J.T. was nominated for the Saturn Award for Best Supporting Actor
for: Needful Things (1993).
- In 1998, J.T. was nominated for the Saturn Award for Best Supporting Actor
for: Breakdown (1997).
- J.T. narrated the Nixon audiobook.
- J.T. appeared in David Mamet's Glengarry Glen Ross on Broadway in 1984.
- J.T. had intended to go by his real initials, J.P. Walsh, but during a casting call, his initials were miscalled as J.T. and he liked it better than J.P..
- The television movie Dollar for the Dead (1998) was dedicated to J.T..
- Some of J.T.'s early jobs also included tending bar at some of Manhattan's best seafood restaurants.
- Hidden Agenda (1998) was the last film J.T. ever shot. It was dedicated to his memory.
- Before his death, J.T. was hoping to follow the example of Gene Hackman and get away from playing the psychos and cowards he had been typecasted as, playing more complicated and substantial character parts.
- J.T. was 6' 1" (1.85 m) tall.
