Religion: not determined yet
Name: Duncan Carlisle
Other Names: Agent Duncan Carlisle; Rob Halsey
First Appearance: Hostages - Season 1, Episode 1 (23 Sep. 2013): "Pilot"
Number of Appearances: 15
Family/Relative: Kramer Delaney (in-law)
Occupation: federal agent
Note: rogue FBI agent; plots to kill U.S. President using doctor
"Rob Halsey" is an alias that Duncan Carlisle used when calling co-conspirator Quentin Creasy (White House Chief of Staff).