Diagnosis Murder/The Last Laugh (1)

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The Last Laugh (1) is the ninth episode of the second season of Diagnosis Murder, and the twenty-eighth episode overall.

Guest Stars: Carey Van Dyke (Mr. Kelso), Dyan Cannon (Bonnie Valin), Matthew Glave (Roger Valin), Crystal Chappell (Eve Laurie), Harley Venton (Dr. Lloyd Fleming), Jamie Luner (Kimmy Marlowe), David Cromwell (Wallace Sterling), Pernell Roberts (Dr. Elliott Valin), Kristin Carey (Dr. Emily Schnitzer), Michael Lowry (Dave McConnell), Martha Thompson (Mertle Gipe), David Kimball (Dunphy), Deena Freeman (Betsy), Patrice Pitman Quinn (Barbara), Charles Dougherty (Thurston), Peter Gonneau (Henri), Andi Chapman (Pratt), Ralph P. Martin (Driver), Mimi Cozzens (Judge), Susan Nyby (Foreman)

Plot Overview

Mark investigates the murder of a colleague, an unpopular neurosurgeon done in by laughing gas.

Carey Van Dyke, Dick's grandson and Barry's son, makes his first appearance in this episode, playing a surfer.

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