In hindsight, I think it would have made more sense if instead of Ashley, Frankie had been introduced during season five. Blake was looking for help with oil leases, as the widow of a diplomat Frankie could have been a lot of help with this. As Jeff's mother, Blake and Ashley would have some history so it would make sense for him to reach out to her. This also would have helped with establishing characters from "The Colbys" on the parent show so viewers would hopefully develop a connection and want to follow them onto the spin-off. I imagine Blake flying to England to meet with Frankie, the two mention they haven't seen each other "in years". Blake makes pleasant small-talk while it is clear that Frankie is flirting. As he leaves Blake says "it was great to see you again. I know someone else who'd love to hear from you - your son, Jeff." We wouldn't know Frankie is Jeff's mother prior to this reveal. Alexis, of course, would be livid that Frankie would favor Blake over her. Krystle would resent Frankie's obvious attraction to Blake (to which Blake is oblivious - "she's a very dear friend, nothing more"). Jeff's treatment of Frankie would be civil but very chilly. As Blake and Krystle's marriage further deteriorates and Blake and Frankie spend more time together, an angry Krystle would comment on Frankie's neglect of Jeff - which would receive an angry rebuke from Blake. Frankie would attend Amanda and Michael's wedding (so would Jason, Sable and Zack). When the soldiers begin firing at the wedding party Jeff would rush to shield his mother from the gunfire, taking a (non-fatal) bullet in the process. I wouldn't have had Frankie and Sable be Alexis' cousins (which results in Fallon's two husbands being her cousins). I would have had Alexis and Sable be classmates in art-school who eventually become friends before something happens that causes a major rift between them. Alexis, Cassie, Sable and Frankie would all be friends and the Morell sisters would travel to Los Angeles to attend Frankie's marriage to Philip. It would be at this wedding that Alexis would meet Cecil. Lastly, Frankie would be played by Jacqueline Bisset.