| 角色 | 饰演者 | 角色介绍 |
| Richard Castle? (105 episodes 2009-2013) | 内森·菲利安 | |
| Kate Beckett? (105 episodes 2009-2013) | 斯坦娜·卡蒂克 | |
| Alexis Castle? (105 episodes 2009-2013) | 莫莉·奎恩 | |
| Javier Esposito? (105 episodes 2009-2013) | Jon Huertas | |
| Kevin Ryan? (105 episodes 2009-2013) | Seamus Dever | |
| Martha Rodgers? (104 episodes 2009-2013) | Susan Sullivan | |
| Lanie Parish? (104 episodes 2009-2013) | Tamala Jones | |
| Captain Roy Montgomery (58 episodes 2009-2011) | Ruben Santiago-Hudson | |
| Captain Victoria Gates? (47 episodes 2011-2013) | 潘妮·强森 | |
| M.E. Sidney Perlmutter (11 episodes 2009-2013) | Arye Gross | |
| Jim Beckett (8 episodes 2009-2013) | Scott Paulin | |
| Dr. Carter Burke (5 episodes 2011-2013) | 迈克尔·多恩 | |
| Jenny Duffy-O'Malley? (5 episodes 2010-2013) | Juliana Dever | |
| Mystery Man? (4 episodes 2011-2012) | 杰弗瑞·佩尔森 | |
| Josh Davidson (4 episodes 2010-2011) | 维克多·韦伯斯特 | |
| Det. Tom Demming (4 episodes 2010) | 迈克尔·特鲁科 | |
| Himself (3 episodes 2009-2010) | 史蒂芬·J·坎内尔 | |
| Gina Griffin? (3 episodes 2009-2010) | 莫奈特·玛佐 | |
| Himself? (3 episodes 2009-2011) | 麦克·康纳利 |
