Stanni keeps the Prince maintenance job moving after Ren vanishes, then weeps openly while trusting the supervisor who murdered his colleague.
Stanni's technical work helps trace a persistent power anomaly aboard the Thomas Prince. During an action-stations alert, his brief silence panics Soledad, evidence that Ren's disappearance has made every gap in communication feel ominous. He finds a ten-percent fluctuation, resets the component, and shares coffee and sweet rolls with the reduced team while diagnostics run.
The older technician refuses to declare Ren dead and insists they still have a job to perform. His composure breaks when he repeats that conviction with a catch in his voice and weeps until Soledad comforts him. Melba Koh, recognizing for the first time that he is probably her father's age, apologizes without admitting what she has done. Stanni answers with kindness, offers her a sweet roll, and later accepts her unexplained departure without suspicion.
Stanni is an older male technician, probably near Jules-Pierre Mao's age. His specific features are not described; he wears work clothes, rubs his thigh when nervous, and weeps with visible but dignified grief.
Stanni is the experienced teammate whose grief, courage, and undeserved trust intensify Clarissa's realization that her victims are not abstractions.