Gary DeWitt Marshall is an actor.
Gary DeWitt Marshall appears in: 24 (2001), ER (1994) and Without a Trace (2002), among others.
Gary DeWitt Marshall
person
Known for
- watched
- 45min
- Seasons: 7
- Episodes: 160
Series about the special FBI Missing Persons Unit (MPU) that finds missing people by applying advanced psychological profiling to reveal the victims' lives.