The dashing captain of the USS Wayfarer, played by Brad Boimler in his own holodeck film in the Lower Decks episode Crisis Point 2: Paradoxus.
Captain Bucephalus Dagger is the lead character of Crisis Point 2: Paradoxus, the holodeck sequel written by Brad Boimler in the third-season Lower Decks episode of the same name. Boimler casts himself as the square-jawed commander of the USS Wayfarer, with Tendi, Rutherford and Mariner as his crew in a tale about Romulans plotting to erase the Federation from history.
The film goes astray almost at once. Boimler has just been told that his transporter duplicate, William, has died, and as Dagger he abandons the plot to follow a minor character's hints about the meaning of life. Tendi, who takes the adventure seriously as a test of her own ambition to be a captain, is left to finish the mission.
Dagger's quest ends on a desert world, where the dehydrated Boimler has a vision of Hikaru Sulu, who advises him to accept that life is random.