Feardorcha O'Sullivan
| Portrayed by Philip Glenister | |
| Full Name | Feardorcha Alastor O'Sullivan |
|---|---|
| Title | Sir Feardorcha O'Sullivan |
| Associated Noble House(s) | Marquessate of Eastborough |
| Date of Birth | |
| Father | Patrick O'Sullivan |
| Father's Rank | Gentry |
| Mother | Philomena O'Sullivan |
| Mother's Rank | Gentry |
| Town Residence | 28 Berkley Square |
| Income | £12,000 p.a. |
| School | - |
| University | Trinity College Dublin |
| Year Attained Title | 1800 |
Sir Feardorcha O'Sullivan is a baronet and businessman. He is married to Lady Mirabel O'Sullivan and together they have two young sons: Rawdon and Patrick.