Pepper Anderson meets with her autistic younger sister "Cheryl" (actress Nicole Kallis). This character may be an allusion to Angie Dickinson's beloved real-life daughter Lea Nikki (father Burt Bacharach), who suffered from Asperger's Syndrome; however, the disorder was not fully known then, and Nikki was not diagnosed until she was 33. "Cheryl" appeared in the next episode of Police Woman ("Warning to All Wives"), but was then dropped from the series.
Cathy Rigby's character Sandra is told that she looks to young to do the undercover operation. Kathleen Qinlan's character Debbie Sweet is chosen instead. In reality Cathy Rigby is 23 months older than Kathleen Quinlan.