| cast |
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| Series Regulars | |||
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| Catherine McCormack | Catherine McCormack as Theresa Leary | Holt McCallany | Holt McCallany as Patrick "Lights Out" Leary |
| Meredith Hagner | Meredith Hagner as Ava Leary | Pablo Schreiber | Pablo Schreiber as Johnny Leary |
| Stacy Keach | Stacy Keach as Robert "Pops" Leary | | |
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| Recurring & Guests | |||
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| Ben Shenkman | Ben Shenkman as Mike Fumosa | Bill Irwin | Bill Irwin as Hal Brennan |
| Billy Brown | Billy Brown as Richard "Death Row" Reynolds | Ryann Shane | Ryann Shane as Daniella Leary |