In several early first-season Star Trek: Voyager scripts, call sheets, and shooting schedules and during the pre-production phase, the character of The Doctor was referred to by name as "Doc Zimmerman" after Herman Zimmerman, since the show's producers had not yet decided to leave him unnamed. (VOY Season 2 DVD trivia text version of "The 37's") His initial description in the script for VOY: "Caretaker" originated this routine, as The Doctor was therein initially referred to "as a holographic man in a Starfleet medical uniform […] He has no name for now… but we will get to know him in time as Doc Zimmerman. His manner is colorless, dry." The character continued to be referred to as having the name "Zimmerman" in all the scripts which were written for the series' first season, and "Zimmerman" was reported to the public as the character's name in press materials during the series' initial production run. Robert Picardo claimed in October 2022 that it was his decision to rename the character in the credits, with a view to the Doctor choosing the name "Doc Zimmerman" in a later episode.