Lucy reveals that she met Ricky when Marion Strong asked her to go on a blind date with a Cuban drummer 15 years prior. Clearly, the writers had forgotten all about this by the first episode of the Lucy-Desi Comedy Hour, which explains that Lucy met Ricky while IN Cuba.
Dolores Donlon, who plays one of the starlets doing publicity shots for Don Juan, in real life was married to Victor M. Orsatti, a Desilu producer whose name often was used as an unseen Ricardo friend, along with Sedgwick, Van Vlack and others. (Marion Van Vlack was a childhood friend of Lucy's from Jamestown, New York; and Edward Sedgwick was a film director in the 1930s, 1940s and 1950s who is credited as director of I Love Lucy (1953), a feature film that was never released.)
Ross Elliott appears in this episode as Ricky's publicity agent who takes photos of the starlets to promote Ricky's picture, Don Juan. He greets Lucy at the apartment as if meeting her for the first time, though he also appears in the earlier Lucy Does a TV Commercial (1952) as the director of Lucy's famous Vitameatavegamin commercial. His character name in both episodes was his own - Ross Elliott. He also appears in Hollywood Anniversary (1955), again as Ross, Ricky's publicity agent, and in a 1958 Desilu/Westinghouse promotional film (seen in the DVD extras of the I Love Lucy complete series set), in which he plays 'Mr Hayden', the Westinghouse products salesman.