A human nurse who works under Dr. T'Ana in the sickbay of the USS Cerritos, a familiar background face throughout Lower Decks who is named after the show's composer, Chris Westlake.
Nurse Westlake is a member of the medical staff of the USS Cerritos, serving under the short-tempered Caitian chief medical officer Dr. T'Ana and alongside D'Vana Tendi during her time as a medical ensign. A bearded human in a blue uniform, he is one of the regular background figures of Lower Decks, seen in sickbay, in the corridors and in the bar from the first season onwards.
Unlike most of the ship's incidental crew he eventually acquires a name and the occasional line, and he is credited among the guest voices of the final season. The name is a tribute to Chris Westlake, who wrote the music for the series.
Westlake is typical of the way the programme treats its ship: the same handful of junior officers and specialists recur in scene after scene, so that the Cerritos feels like a crew of individuals and not a set filled with anonymous extras.