Main Characters Maxine Roby 41 main appearances CSI Joshua Folsom 41 main appearances CSI Allie Rajan 41 main appearances Beau Finado 31 main appearances Detective Serena Chavez 31 main appearances CSI Chris Park 29 main appearances Catherine Willows 23 main appearances Gil Grissom 10 main appearances Sara Sidle 10 main appearances Hugo Ramirez 10 main appearances
Recurring Guest Characters Penny Gill 21 guest appearances Jack Nikolayevich 13 guest appearances Sonya Nikolayevich 12 guest appearances Dr. Milton Hudson 10 guest appearances Bryan Roby 8 guest appearances Anson Wix 6 guest appearances Chris Park 5 guest appearances Detective Will Carson 5 guest appearances Detective Nora Cross 5 guest appearances Trey Cahill 5 guest appearances David Hodges 4 guest appearances Undersheriff Cade Wyatt 4 guest appearances Adam Tyner 4 guest appearances Dr. Diane Auerbach 4 guest appearances Grace Wong 4 guest appearances Guillermo 3 guest appearances Jodi Wallach 3 guest appearances Greg Sanders 3 guest appearances Jeanette Folsom 3 guest appearances Truman Thomas 3 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥