Perry Mason The Case of the Poison Pen-Pal (Season 5, Episode 20)
TV-PG
TV Episode | 52 min | Crime, Drama, Mystery

Primary photo for The Case of the Poison Pen-Pal

Perry Mason

The Case of the Poison Pen-Pal (Season 5, Episode 20)

TV-PG

TV Episode | 52 min | Crime, Drama, Mystery

Peter Gregson's aunt is murdered after she investigates a company leak that may involve Peter's old secretary, Karen Ross. Karen travels to San Francisco to see the aunt and, ultimately, is charged with her murder due to pen-pal letters.

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Cast	+ Add Cast
29 cast members

Name	Known for
Raymond Burr Perry Mason Perry Mason See fewer	Rear Window (1954)
Barbara Hale Della Street Della Street See fewer	Perry Mason (1957)
William Hopper Paul Drake Paul Drake See fewer	Perry Mason (1957)
Ray Collins Lt. Tragg (credit only) Lt. Tragg (credit only) See fewer	Citizen Kane (1941)
Everett Sloane District Attorney District Attorney See fewer	Citizen Kane (1941)
Patricia Breslin Karen Ross Karen Ross See fewer	Homicidal (1961)
Douglas Henderson Peter Gregson Peter Gregson See fewer	The Manchurian Candidate (1962)
Bert Freed Carl Holman Carl Holman See fewer	Paths of Glory (1957)
Wright King Lee Gregson Lee Gregson See fewer	Planet of the Apes (1968)
Joan Tompkins Florence Holman Florence Holman See fewer	Thriller (1960)
Kathryn Givney Wilma Gregson Wilma Gregson See fewer	My Friend Irma (1949)
Naomi Stevens Agnes Agnes See fewer	Valley of the Dolls (1967)
Charles Cooper Ben Willoughby Ben Willoughby See fewer	Star Trek V: The Final Frontier (1989)
Harry Jackson Matt Clark Matt Clark See fewer	The Power of the Resurrection (1958)
Paul Genge Inspector Wade Inspector Wade See fewer	Bullitt (1968)
John Litel Judge Judge See fewer	They Died with Their Boots On (1941)
Chrystine Jordan Sandra Gregson Sandra Gregson See fewer	Bob Hope Presents the Chrysler Theatre (1963)
Diane Mountford Jill Thatcher Jill Thatcher See fewer	The Children's Hour (1961)
Richard St. John Autopsy Surgeon Autopsy Surgeon See fewer	Kisses for My President (1964)
Walter Kelley Surgeon (as Walter Kelly) Surgeon (as Walter Kelly) See fewer	Cross of Iron (1977)
Marshall Reed First Officer First Officer See fewer	The Madmen of Mandoras (1963)
Diana Darrin Mrs. Thatcher Mrs. Thatcher See fewer	The Scenario (2022)
John McKee Woodfern Woodfern See fewer	Cape Fear (1962)
Sherry Hall Court Clerk Court Clerk See fewer	The Prowler (1951)
Kathy Huber Nurse Nurse See fewer	Perry Mason (1957)
Leon Alton Courtroom Spectator (uncredited) Courtroom Spectator (uncredited) See fewer	Target (1958)
Don Anderson Second Officer (uncredited) Second Officer (uncredited) See fewer	Playhouse 90 (1956)
Paul Bradley Courtroom Spectator (uncredited) Courtroom Spectator (uncredited) See fewer	Jeep-Herders (1945)
Carl Sklover Cab Driver (uncredited) Cab Driver (uncredited) See fewer	Meet Danny Wilson (1952)