Halloran's attorney, played by co-star Ian Scott McGregor, is a supporting character in "To the Lost". He represents Ray Halloran as a state's witness at the trial of Nucky Thompson.
Appearances[]
| Season two appearances | |||
| 21 | Ourselves Alone | A Dangerous Maid | What Does the Bee Do? |
| Gimcrack & Bunkum | The Age of Reason | Peg of Old | Two Boats and a Lifeguard |
| Battle of the Century | Georgia Peaches | Under God's Power She Flourishes | To the Lost |