Carol Baldwin, the assistant district attorney, hires Magnum to investigate a man who allegedly murdered his wife.
- Tom Selleck as Thomas Sullivan Magnum IV
- John Hillerman as Jonathan Quayle Higgins III
- Roger E. Mosley as Theodore "T.C." Calvin
- Larry Manetti as Rick Wright
- George DiCenzo as M. Barry Aldridge
- Margie Impert as Madeline Jones
- Marian Green as Debbie Carrington Bowman
- Natalie Gregory as Beth Bowman
- Barbara Rush as Ann Carrington
- Danny Kamekona as Judge
- Dick Jensen as Willie K.
- Gary Epper as Gregory Xavier Bowman
- Robert L. Silva as Officer Gilbert (as Bob Silva)