The director Leonard Nimoy previously appeared with Lou Antonio (Jake) in Let That Be Your Last Battlefield (1969).
Director Leonard Nimoy also worked with Lesley Ann Warren (Hyacinthe) during Season 5 of Mission: Impossible (1970-71).
Hyacinthus is a small genus of bulbous, spring-blooming perennials. They are fragrant flowering plants in the family Asparagaceae, subfamily Scilloideae and are commonly called hyacinths.