Darren was subsequently hired for the role. He thought that Fontaine was a combination of Martin and Frank Sinatra, and found that a mention by the character to traveling with that duo to Vegas in the "His Way" script caused him to think about the past, as he had travelled with Sinatra, Jr. and Nancy Sinatra in Sinatra's private plane to Las Vegas to see Sinatra and Martin play at the Sands Hotel and Casino on several occasions. At the time, Darren was unsure whether it was to be a recurring role or not, but had enjoyed the experience. Fontaine is in the final episode of the season, "Tears of the Prophets", and several episodes throughout .