DAVID HOROVITCH (Doctor Pavlov) has a wide variety of credits on stage, television, radio and feature films. He has starred in many of England's most popular television programs and portrayed Inspector Slack on the BBC's popular series of Agatha Christie adaptations. His small-screen credits include "The Body in the Library," "Murder at the Vicarage," "The 4:50 from Paddington," "They Do It with Mirrors," and "The Mirror Crack'd." Also for the BBC he starred in "Hold the Back Page," "Prince Regent," "Play for Today," "Bergerac," "Vanity Fair," "Westbeach," "French and Saunders," "The Blue Boy," "Just William," "Casualty," "Great Expectations," and "Deceit." Among his many other television credits are "Bagnor" (title role), "Hadleigh," "Bulman," "Poirot," "Stay Lucky," "Love Hurts," and "Shine on Harvey Moon." Mr. Horovitch has starred in the feature films "One of the Hollywood Ten," "Solomon and Gaenor," "An Unsuitable Job for a Woman," "Paper Marriage," and "The Dirty Dozen III." His lengthy list of stage credits includes "Disposing of the Body," "Experiments with an Air Pump," "Going Concern," "Ghosts," "The Complaisant Lover," "Single Spies," "Madame Bovary," "What the Butler Saw," "The Tempest," "A Doll's House," "The Act," "School for Scandal," "Measure for Measure," "All's Well that Ends Well," "The Importance of Being Earnest," "The Misanthrope," "An Inspector Calls," "The Crucifer of Blood," and "There's a Girl in My Soup."