- as Adrian Monk
- as Paul Buchanan
- as Natalie Teeger
- as Peggy Davenport
- as Susie the Maid
- as Mrs. Murphy
- as Bobby Davenport
- as Edward Stilson
- as Monica Buchanan
- as Dr. Charles Kroger
- as Guest Alfred
- as Guest Sylvia
- as Merva the Maid
- as Guest Mabel
- as Clara Buchanan
- as Burly Mechanic
- as Guest Roger
- as Camilla Buchanan
- as Captain Leland Stottlemeyer
- as Lt. Randall Disher
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