character - Oliver

character - Bruce

character - Cornelius

character - Masson

character - Bill

character - Dr. Elrood

character - Anthony Herman

character - Brian

character - Mr. Jacobs

character - Husband Kimmel

character - Michael

character - Tormada

character - Derrek Blarney

character - Bill Ratch

character - Nelson Dwyer

character - Fleming

character - Chad

character - Earl Baer

character - Talbor Calchek

character - Aslin Kane

character - Olivia's Father

character - Self

character - Mills

character - Radnor

character - Douglas Hunsiker

character - Nathan Burns

character - Fred Murray

character - Barlow

character - Frank

character - Rodney McKay

character - Rodney McKay

character - Larry Tolson

character - Patrick

character - Special Agent Jerry Moore

character - Dr. Emmett

character - Rodney McKay

character - Anders Raeborne

character - Bryan

character - Lawrence Yeager

character - Dave

character - Virgil C. Dunn

character - Fred Watkins

character - Hector Freimark

character - Murray

character - Michael

character - Gus Gruber

character - Gerry Capano

character - Frederick

character - Nick

character - Mr. Green

character - Doc

character - Worth

character - Mel

character - Andrew

character - Rodney McKay

character - Doctor Rodney McKay / Himself

character - Rob Fitzgerald

character - Hank

character - Grant Jansky

character - Mr. Schudy

character - Dr. Nicholas (Nickie) Elder

character - Steven Lunney (age 25)

character - Deadpan

character - Nyles Chapman

character - 'Ruska' Rostislav

character - Walter Jenkins

character - Walter Jenkins

character - Gary Hammond

character - David Kellum

character - Terry

character - Jimmy

character - Joe Dobson

character - Leon

character - Cal

character - Chuckie