Main Characters Dr. Laszlo Kreizler 18 main appearances John Moore 18 main appearances Sara Howard 18 main appearances DS Marcus Isaacson 18 main appearances DS Lucius Isaacson 18 main appearances Cyrus Montrose 17 main appearances Stevie Taggert 10 main appearances Theodore Roosevelt 10 main appearances Mary Palmer 8 main appearances Libby Hatch 8 main appearances Bitsy Sussman 8 main appearances
Recurring Guest Characters Don Giovanni / Opera Singer 1 guest appearances Mr. Kreizler 1 guest appearances Ted Roosevelt Jr. 1 guest appearances Bathhouse Caretaker 1 guest appearances Jack Astor 1 guest appearances Nurse 1 guest appearances Leporello / Opera Singer 1 guest appearances Donna Elvira / Opera Singer 1 guest appearances Commendatore / Opera Singer 1 guest appearances Kermit Roosevelt 1 guest appearances Martha Napp 1 guest appearances Sterling Hessler 1 guest appearances Gorgeous George 1 guest appearances Linares Governess 1 guest appearances Linares Serving Woman 1 guest appearances Linares Cook 1 guest appearances Linares Butler 1 guest appearances Linares Serving Girl 1 guest appearances Hearst Associate 1 guest appearances Siegel Cooper Employee 1 guest appearances ⇤ « 4 5 6 7 8 9 10 11 12 13 » ⇥