During his conversation with Behr and producer Ron Surma, he started injecting lines from the script into the conversation. Still, he read the script and, according to Darren on The Shuttlepod Show, went into a casting session dressed for the part. At the time, he was neither singing nor acting, but spending most of his time directing television. Unlike Sinatra Jr, Darren wasn't a big fan of the universe beforehand.

James Darren had a recording career in the 1960s, as well as appearing on classic TV series like Gidget and The Time Tunnel. Behr sent him a script and 'he thought it was very funny, but he said that he did not want to play a singer, he wanted to play an alien.' After a search among other crooner types, Behr found Darren. to appear as a holographic version of himself. Erdmann with Paula Block, was for Sinatra Jr. His original idea, according to The Deep Space Nine Companion by Terry J. A fan of the crooners, Behr knew Frank Sinatra Jr.

Vic Fontaine was an indulgence of the preeminent showrunner of Deep Space Nine, Ira Steve Behr.

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