Cassandra Harris, who played Felicia/Catherine Simone, was married to Pierce Brosnan from 1980 until her untimely death from ovarian cancer at age 49 in December 1991, one day after her and Brosnan's 11th anniversary.
Beverly Garland, who played Laura's mother Abigail, would the following year begin playing Dotty West, the mother of Kate Jackson's character on the similarly themed series Scarecrow and Mrs. King (1983). Garland's son has publicly claimed that the producers of Remington Steele wanted to avoid confusion by having the same actress play virtually identical roles in two series, so Garland's character Abigail was written out and never appeared again after her second and final appearance in Sting of Steele (1983). Garland went on to appear in 88 episodes of The Scarecrow and Mrs. King.