Robert Picardo's potential appearance in Season 2 of Star Trek: Picard is interesting considering the unique qualities of "The Doctor." The Doctor is an Emergency Command Hologram used for extreme cases in which the doctor of a Starship is incapacitated. In Star Trek: Voyager, The Doctor ends up becoming the Chief Medical Officer on the Voyager, and can appear within the sickbay or any part on the ship that has hologram technology. In Voyager's later seasons he received tech that expanded his mobility a great deal.