Several actors from "Here Come the Brides" had also appeared on "Star Trek". Mark Lenard played Aaron Stemple, whom the novel implies was Spock's ancestor. Lenard also played the role of Sarek, Spock's father, in the original "Star Trek" TV series, as well as a Romulan commander in the episode "Balance of Terror" (the first time the Romulans are seen in the series). The actor playing Jason Bolt (the eldest brother) was Robert Brown who played "Lazarus" in the "Star Trek" episode "The Alternative Factor." The actor playing Joshua Bolt (a younger brother) was David Soul who played "Makora" in the "Star Trek" episode "The Apple."