Murder, She Wrote What You Don't Know Can Kill You (Season 12, Episode 22)
TV-PG
TV Episode | 47 min | Crime, Drama, Mystery

Primary photo for What You Don't Know Can Kill You

Murder, She Wrote

What You Don't Know Can Kill You (Season 12, Episode 22)

TV-PG

TV Episode | 47 min | Crime, Drama, Mystery

Johnny is engaged to Seth's niece Amy but enrages Les by visiting Sherri. When Johnny is the victim of a motorcycle accident, Amy insists that it was murder.

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Cast	+ Add Cast
17 cast members

Name	Known for
Angela Lansbury Jessica Fletcher Jessica Fletcher See fewer	The Manchurian Candidate (1962)
Michele Abrams Mickie Mickie See fewer	Buffy the Vampire Slayer (1992)
Anthony Michael Hall Les Franklin Les Franklin See fewer	War Machine (2017)
Jerry Hardin Tom Sampson Tom Sampson See fewer	Big Trouble in Little China (1986)
Louis Herthum Deputy Andy Broom Deputy Andy Broom See fewer	The Night Agent (2023)
Laurie Holden Sherri Sampson Sherri Sampson See fewer	The Boys (2019)
Billy Keane Johnny Carter (as William Keane) Johnny Carter (as William Keane) See fewer	On Freddie Roach (2012)
Bruce Kirby Jeremy Woods Jeremy Woods See fewer	The Muppet Movie (1979)
Geoffrey Lewis Roger Yates Roger Yates See fewer	The Way of the Gun (2000)
Ron Masak Sheriff Mort Metzger (as Ron Másak) Sheriff Mort Metzger (as Ron Másak) See fewer	The Benchwarmers (2006)
Judson Mills Stu Yates Stu Yates See fewer	Walker, Texas Ranger (1993)
Kathryn Morris Doreen the Waitress Doreen the Waitress See fewer	Minority Report (2002)
Cari Shayne Amy Walters Amy Walters See fewer	The Bay (2010)
Will Stewart Roger Yates's Junior Son (as Will Foster Stewart) Roger Yates's Junior Son (as Will Foster Stewart) See fewer	Hardcore Henry (2015)
William Windom Dr. Seth Hazlitt Dr. Seth Hazlitt See fewer	Escape from the Planet of the Apes (1971)
Kathryn Masak Deputy Olsen (as Kathryn Másak) Deputy Olsen (as Kathryn Másak) See fewer	Murder, She Wrote (1984)
Morgane Agnelli Wynn Megan (uncredited) Megan (uncredited) See fewer