Lt Gavin
Lieut. Hardcastle
Biographical information
Full name: Gavin Hardcastle
Status: Alive
Occupation: Police Lieutenant
Other information
Gender: Male
Hair color: Grey/dark brown
Eye color: Brown
Series information
Portrayed by: Ron Lea
Season/s: 1, 4
First appearance: "Natural Selection"

Lieutenant Gavin Hardcastle is the lieutenant at the police station where Elizabeth Childs and Arthur Bell work. Sarah first meets him as he attempts to rush her into the hearing for the Maggie Chen case, but she avoids it to go freak out in the bathroom. He gives Sarah back her job after she successfully does the hearing over again later on. He then oversees the Jane Doe case involving Katja Obinger and Helena for a small while. He later talks to Sarah about going into Maggie Chen's office after she calls a meeting including Art. There she resigns from the force as the stress of the case and Helena's threats are too much for her. He is surprised but has to deal with the loss of the cop.

Season 1 appearances
Natural Selection Instinct Variation Under Nature Effects of External Conditions Conditions of Existence
Variations Under Domestication Parts Developed in an Unusual Manner Entangled Bank Unconscious Selection Endless Forms Most Beautiful
Season 4 appearances
The Collapse of Nature Transgressive Border Crossing The Stigmata of Progress From Indistinct to Rational Control Human Raw Material
The Scandal of Altruism The Antisocialism of Sex The Redesign of Natural Objects The Mitigation of Competition From Dancing Mice to Psychopaths
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