List of In Plain Sight cast members


 * For more detailed character information, see List of In Plain Sight characters.

Below is a list of actors and actresses that are or were part of the cast of the American drama television series In Plain Sight.

The show's main stars have included, at some point, Mary McCormack, Fred Weller, Nichole Hiltz, Todd Williams, Lesley Ann Warren, Paul Ben-Victor, Cristián de la Fuente, and Rachel Boston.

Cast
{| class="wikitable" style="text-align:center" ! rowspan="2" width="16%" | Character ! colspan="5" align="center" | Season ! align="center" width="12%" | Season One (2008) ! align="center" width="12%" | Season Two (2009) ! align="center" width="12%" | Season Three (2010) ! align="center" width="12%" | Season Four (2011) ! align="center" width="12%" | Season Five (2012) ! colspan="6" style="background-color:lightblue;" |

Main cast
! Mary Shannon ! Marshall Mann ! Brandi Shannon ! Jinx Shannon ! Stan McQueen ! Raphael "Raph" Ramirez ! Robert "Bobby D" Dershowitz ! Det. Abigail Chaffee ! colspan="6" style="background-color:lightblue;" |
 * style="background:#d9ffd9;" colspan="5"| Mary McCormack
 * style="background:#d9ffd9;" colspan="5"| Fred Weller
 * style="background:#d9ffd9;" colspan="4"| Nichole Hiltz
 * colspan="1" style="background-color:pink;" | Nichole Hiltz
 * style="background:#d9ffd9;" colspan="2"| Lesley Ann Warren
 * colspan="3" style="background-color:pink;" | Lesley Ann Warren
 * colspan="1" style="background-color:pink;" | Paul Ben-Victor
 * style="background:#d9ffd9;" colspan="4"| Paul Ben-Victor
 * colspan="1" style="background-color:pink;" | Cristián de la Fuente
 * style="background:#d9ffd9;"| Cristián de la Fuente
 * colspan="1" style="background-color:pink;" | Cristián de la Fuente
 * colspan="1" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Cristián de la Fuente
 * style="background:#d9ffd9;" colspan="2"| Todd Williams
 * colspan="3" style="background-color:lightgrey;" |
 * colspan="3" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Rachel Boston
 * style="background:#d9ffd9;"| Rachel Boston

Family and friends
! Chuck Johnson ! Peter Alpert ! Special Agent Mike Faber ! Scott Griffin ! Seth Mann ! Hal Alpert ! Dora Alpert ! Mark Stuber ! Lia Hernandez ! Joanna Stuber ! James Wiley Shannon ! Kenny ! colspan="6" style="background-color:lightblue;" |
 * colspan="2" style="background-color:pink;" | Tim Kelleher
 * colspan="3" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:lightgrey;" |
 * colspan="3" style="background-color:pink;" | Joshua Malina
 * colspan="1" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Steven Weber
 * colspan="2" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Aaron Ashmore
 * colspan="1" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Aaron Ashmore
 * colspan="2" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Geoff Pierson
 * colspan="1" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Geoff Pierson
 * colspan="3" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Ken Lerner
 * colspan="1" style="background-color:lightgrey;" |
 * colspan="3" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Randee Heller
 * colspan="1" style="background-color:lightgrey;" |
 * colspan="3" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:pink;" | Bryan Callen
 * colspan="4" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Tia Carrere
 * colspan="4" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Mimi Kennedy
 * colspan="4" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Stephen Lang
 * colspan="4" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Josh Hopkins

Other government employees
! Special Agent Robert O'Conner ! Eleanor Prince ! Dr. Shelly Finkel ! Allison Pearson ! Charlie Connor ! Theresa Simmons ! A.U.S.A. Boswell ! Delia Parmalee ! A.U.S.A. Perillo ! Fred Zeitlin ! colspan="6" style="background-color:lightblue;" |
 * colspan="2" style="background-color:pink;" | Will McCormack
 * colspan="2" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:pink;" | Will McCormack
 * colspan="1" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Holly Maples
 * colspan="3" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Ali Marsh
 * colspan="1" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:pink;" | Ali Marsh
 * colspan="2" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Allison Janney
 * colspan="2" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Keith Nobbs
 * colspan="2" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Erika Alexander
 * colspan="2" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:lightgrey;" |
 * colspan="3" style="background-color:pink;" | Grant Albrecht
 * colspan="3" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:pink;" | Tangie Ambrose
 * colspan="3" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:pink;" | Ray Abruzzo
 * colspan="3" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:pink;" | Dan Bucatinsky

Enemies
! Rachel Miller ! Neil "Spanky" Carson ! Lala ! Cormack "Sully" Sullivan ! colspan="6" style="background-color:lightblue;" |
 * colspan="1" style="background-color:pink;" | Jenny Gabrielle
 * colspan="4" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Mark Boone Junior
 * colspan="4" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:pink;" | Luis Moncada
 * colspan="2" style="background-color:lightgrey;" |
 * colspan="4" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Steve Eastin

Witnesses
! Tasha Turischeva / Tasha Somova ! Ronnie Dalembert / Ronnie McIntire ! Carlos Ramirez ! Christy Owens ! colspan="6" style="background-color:lightblue;" |
 * colspan="1" style="background-color:pink;" | Angela Sarafyan
 * colspan="4" style="background-color:lightgrey;" |
 * colspan="3" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:pink;" | Maury Sterling
 * colspan="3" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:pink;" | Robert LaSardo
 * colspan="3" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:pink;" | Lauren Petzke

Minor characters
! Dr. Bronstein ! Mrs. Anders
 * colspan="1" style="background-color:lightgrey;" |
 * colspan="2" style="background-color:pink;" | John Dennis Johnston
 * colspan="2" style="background-color:lightgrey;" |
 * colspan="3" style="background-color:lightgrey;" |
 * colspan="1" style="background-color:pink;" | Patricia Belcher
 * colspan="1" style="background-color:lightgrey;" |
 * }
 * }