Michael C. Hall, Jennifer Carpenter, Julie Benz
Seasons: 1-3
Network: Showtime

Story: Dexter Morgan works for the Miami Metro Police Department as a blood pattern analyst. That's just his day job, at night he's a serial killer who goes around killing off some of societies less desirable elements.

Milo Ventimiglia, Adrian Pasdar, Ali Larter
Seasons: 1-3
Network: NBC

Story: A serial saga about people all over the world discovering that they have superpowers and are trying to deal with how this change affects their lives. Events involving a potential disaster and a dangerous killer soon bring them together.

Jared Padalecki, Jensen Ackles, Joe Morgan
Seasons: 1-4
Network: The CW

Story: Two brothers witness their mother's paranormal death as children. One manages to move on and go to college, but is pulled back in to the job and together they hunt down all manner of mysteries and monsters.