Main Characters Special Agent Nick Durand 30 main appearances Emily Byrne 30 main appearances Special Agent Derek Crown 19 main appearances Jack Byrne 25 main appearances Flynn Durand 7 main appearances Alice Durand 22 main appearances Special Agent Cal Isaac 20 main appearances Warren Byrne 19 main appearances Special Agent Julianne Gunnarsen 19 main appearances Tommy Gibbs 10 main appearances Dr. Daniel Vega 6 main appearances Dr. Semo Oduwale 6 main appearances Colin Dawkins 6 main appearances Adam Radford 5 main appearances
Recurring Guest Characters Special Agent Derek Crown 10 guest appearances Flynn Durand 18 guest appearances Tommy Gibbs 7 guest appearances Agent Ericson 10 guest appearances Agent Polly Canto 10 guest appearances Laurie Colson 8 guest appearances Violet 8 guest appearances Lt. Diane Campbell 7 guest appearances Nurse 7 guest appearances Agent Whitman 6 guest appearances Tyler Brandon Mills 6 guest appearances Deputy Director Foster Webb 6 guest appearances Special Agent Thompson 6 guest appearances Conrad Harlow 5 guest appearances Jenkins 5 guest appearances Erica Lyle 5 guest appearances Dr. Lu-Fang Shen 4 guest appearances Heather Mills 4 guest appearances Kai Kusano 4 guest appearances Elliot Brandstetter 4 guest appearances ⇤ « 1 2 3 4 5 6 7 » ⇥