Main Characters Mike Donovan 18 main appearances Diana 18 main appearances Willie 18 main appearances Kyle Bates 16 main appearances Dr. Juliet Parrish 16 main appearances Lydia 16 main appearances Elizabeth Maxwell 15 main appearances Nathan Bates 13 main appearances Ham Tyler 12 main appearances Robin Maxwell 12 main appearances Elias Taylor 11 main appearances Steven
Recurring Guest Characters Howard K. Smith 11 guest appearances Mr. Chiang 9 guest appearances Lieutenant James 8 guest appearances Philip 6 guest appearances Visitor 5 guest appearances Charles 4 guest appearances John Langley 3 guest appearances Steve Roller 3 guest appearances Visitor Gate Guard 3 guest appearances Young Elizabeth 3 guest appearances Visitor Guard 3 guest appearances Oswald 3 guest appearances Steven 1 guest appearances Thelma 2 guest appearances Visitor Bridge Officer 2 guest appearances Robert Maxwell 2 guest appearances Cafe Customer 2 guest appearances Sean Donovan 2 guest appearances Ensign Daniel 2 guest appearances Frank 2 guest appearances ⇤ « 1 2 3 4 5 6 7 » ⇥