John Ritter Jack Tripper Actor Joyce DeWitt Janet Wood Actor Suzanne Somers Chrissy Snow Actor Norman Fell Stanley Roper Actor Audra Lindley Helen Roper Actor Emmaline Henry Guest Star Richard McKenzie Guest Star Paul Ainsley Guest Star Don Nicholl Executive Producer Michael Ross Executive Producer Bernie West Executive Producer Roger Shulman Producer John Baskin Producer Dave Powers Director Al Gordon Writer Jack Mendelsohn Writer