Jack Tripper as a minister with shorts on Mary Tyler Moore? Chrissy as a sheriff, is she taking a lesson from her cousin Jay Garfield? Richard Kline a monkee? See the Three's Company cast on other shows on TV Land's Three's Company Box Set:

Sun October 20th
Casts on Other Shows - "Three's Company"
3:00PM Andy Griffith #111 "Aunt Bee the Crusader" (Don Knotts)
3:30PM The Mary Tyler Moore Show #129 Ted's Wedding(John Ritter)
4:00PM She's the Sherrif #7 (Suzanne Somers)
4:30PM The Monkees #42 "Wild Monkees" (Richard Kline)