Main Characters Maxine Roby 39 main appearances CSI Joshua Folsom 39 main appearances CSI Allie Rajan 39 main appearances Beau Finado 29 main appearances Detective Serena Chavez 29 main appearances CSI Chris Park 27 main appearances Catherine Willows 21 main appearances Gil Grissom 10 main appearances Sara Sidle 10 main appearances Hugo Ramirez 10 main appearances
Recurring Guest Characters Penny Gill 19 guest appearances Sonya Nikolayevich 11 guest appearances Jack Nikolayevich 11 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 Jim Brass 2 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥