Main Characters Dr. Chris Richardson 2 main appearances Lisa Delgado 2 main appearances Dr. Austin Shepard 2 main appearances Colonel Harlan Williams 2 main appearances Laurie Stephenson 2 main appearances Ginny McKillip 2 main appearances Dr. Malcolm Handey 2 main appearances Brooke Richardson 2 main appearances Haley Richardson 2 main appearances Grant Cole 2 main appearances Dr. Marshall Peters 2 main appearances Kenny 2 main appearances Mr. Miller 2 main appearances
Recurring Guest Characters Agent Bott 2 guest appearances Agent Means 2 guest appearances Bone 2 guest appearances Linda Darlington 2 guest appearances Dr. Duka Ibrahim 2 guest appearances Dr. Rani Vahpayee 2 guest appearances Dr. Wilson Gregory 2 guest appearances Giselle Lamond 2 guest appearances Dr. Joseph Chenislav 2 guest appearances Carl 2 guest appearances Harry Cheevers 2 guest appearances Brenda 2 guest appearances Teresa 2 guest appearances President Jeffries 2 guest appearances Edwards 2 guest appearances Pieface 2 guest appearances Smith 2 guest appearances Speed Walking Woman 2 guest appearances Guard at Observatory 2 guest appearances Gina 2 guest appearances ⇤ « 1 2 3 » ⇥