Lockhart leads a group investigating the bombing of the CIA and has conflicts with Saul.
Appearances
Homeland
Main cast, played by Tracy Letts
- Episode 3x01: Tin Man is Down (Sep 29, 2013)
- Episode 3x05: The Yoga Play (Oct 27, 2013)
- Episode 3x06: Still Positive (Nov 3, 2013)
- Episode 3x07: Gerontion (Nov 10, 2013)
- Episode 3x08: A Red Wheelbarrow (Nov 17, 2013)
- Episode 3x09: One Last Thing (Nov 24, 2013)
- Episode 3x10: Good Night (Dec 1, 2013)
- Episode 3x11: Big Man in Tehran (Dec 8, 2013)
- Episode 3x12: The Star (Dec 15, 2013)
- Episode 4x01: The Drone Queen (Oct 5, 2014)
- Episode 4x02: Trylon and Perisphere (Oct 5, 2014)
- Episode 4x07: Redux (Nov 9, 2014)
- Episode 4x08: Halfway to a Donut (Nov 16, 2014)
- Episode 4x09: There's Something Else Going On (Nov 23, 2014)
- Episode 4x10: 13 Hours in Islamabad (Dec 7, 2014)
- Episode 4x11: Krieg Nicht Lieb (Dec 14, 2014)
- Episode 4x12: Long Time Coming (Dec 21, 2014)