A Touch of Frost. If Dogs Run Free. Part 1 of 2.

First broadcast 4th April 2010.

Small time hood Gerry Berland, who sponsors illegal dogfighting, tries to intimidate a RSPCA officer who witnessed a murder committed by his son.

David Jason ... Insp. Jack Frost
Bruce Alexander ... Supt. Mullett
John Lyons ... D.S. Toolan
Arthur White ... Police Collator
Adrian Dunbar ... Gerry Berland
Niamh Cusack ... Sally Berland
Phyllis Logan ... Christine Moorhead
Simon Shepherd ... Tom Viner
Leah Bracknell ... Carolyn Viner
Adam James ... Gregory Salmond
George Costigan ... Allen Moorhead
Fiona Glascott ... Jenny Mallinger
Chris Overton ... Sean Berland
Hasan Dixon ... Neil Viner
James McKenna ... Custody Sergeant (as James Mckenna)
Poppy Lee Friar ... Sophie Moorhead
Stevee Davies ... Joshua Moorhead
Julia St John ... Pathologist
Branko Tomovic ... Marek Lisowski
Jamie Samuel ... Brian Shanklin
Anton Wright ... Paul Timms
Natasha Symms ... Receptionist
James Wooldridge ... PC
Keir Brown ... Taxi Driver
Paul Marlon Paul Marlon ... Bouncer
Emily Millicent Mott ... Girl in RSPCA
Adam Probets ... Murder suspect
Chris Wilson ... Dog Fight Ringleader