Dr. Mike Morton (Ron Pinkard) is seen manning the Call-in Station at Rampart, throughout this episode. This is the most substantial time he has spent in that capacity, to this point.
Ronne Troup is the daughter of Bobby Troup, from his first marriage & the stepdaughter of Julie London.
Walt, the man trying to pull the pilot from the crashed crop-duster, is Frank Bonner. Frank Bonner would go on to play Herb Tarlek the sales manager on WKRP in Cincinnati. Bonner wears work shirt and jeans in this show but in WKRP, he was known for his loud ugly suits with white belt and shoes.