Mark Pellegrino

Mark Ross Pellegrino is an American actor of film and television. He is best known for his work as Lucifer in Supernatural, Paul Bennett in Dexter, Jacob in Lost and as Bishop in Being Human. He also recurred in the role of Clayton Haas in the ABC thriller Quantico.

The Mentalist · S2, E4

Red Menace

Patrick Jane, Agent Lisbon and CBI agents investigate the murder of a successful criminal attorney whose only client is one of California’s most dangerous and powerful motorcycle gangs.
Dexter · S1, E7

Circle of Friends

The identity of the Ice Truck Killer does not sit well with Dexter; Rita's ex-husband returns.
Dexter · S1, E8

Shrink Wrap

A high-profile woman's presumed suicide reveals a strange pattern of murders, leading Dexter to stalk a killer unlike any other.
Dexter · S1, E10

Seeing Red

The Ice Truck Killer leaves Dexter the most-awful crime scene imaginable, forcing him to confront a suppressed memory.
Dexter · S2, E1

It's Alive!

Dexter finds himself unable to kill his victims; Debra returns to work.
Dexter · S1, E9

Father Knows Best

Rita, Debra and Rudy join Dexter for a weekend away when he learns that his biological father has just passed away.