When Steve is shown a photo of Susan Abbott at the beginning, the photo used is a publicity still of Pamela Franklin in her role as Shelby in Ace Eli and Rodger of the Skies (1973).
Barely 1 month later, Pamela Franklin would go on to play pretty much the same part, a psychic, in The Magician The Illusion of the Fatal Arrow (1974), but with a different character name. However, it is unclear which of the two she filmed first: sometimes productions are held back and a show filmed later airs before the one that was filmed first.
Pamela Franklin is wearing a "Starsky sweater" in her first scene. This refers to Starsky & Hutch '70s TV show, where Paul Michael Glaser had famously worn one of those cardigans in the intro credits when jumping in a pool, in a couple titles and in some of his most famous publicity shots. Glaser referred to it as the "Mexican sweater" being that he had bought it in a small Mexican shop in the famous Olvera street, in downtown Los Angeles.