David Prosho (born 17th February 1965 in Leicestershire) appeared in Emmerdale as PC Derek Wallis (also 'Wallace') sporadically between April 1995 and May 1998

Best known for his role as DC Ian Mitchell in the ITV police drama Scott & Bailey, his other credits include Children's Ward, Peak Practice, The Grand, City Central, Heartbeat, Dalziel and Pascoe, Queer as Folk, Clocking Off, The ViceCoronation Street, The Cops, Always and Everyone, Phoenix Nights, The Second Coming, Casualty, Where the Heart Is, Hollyoaks, New Street Law, The Syndicate, Secret StateInspector George Gently and Doctors.

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