Characters Index

The Mermaid Mask features a tightly written ensemble cast blending returning Detective Grimoire universe favorites with new Mortuga Submarine personnel. SFB Games fully voice-acts eight suspect-tier characters whose alibis, motives, and means populate the Suspicion Tracker, while supporting roles enrich Silkwirm-on-Sea surface scenes. This index links every major profile page with spoiler-conscious biographies appropriate for players mid-investigation. The victim, Captain Magnus Mortuga, casts a long shadow—his relationships with each crew member define the twelve-hour campaign's emotional and mechanical stakes.

Investigators

Detective Grimoire returns as the player protagonist—a verbose fox detective whose internal monologue doubles as tutorial framing. Partner Sally Spears provides contrast with pragmatic quips, hint nudges, and optional dialogue choices during crew interviews. Together they investigate Mortuga's locked-room murder without supernatural powers, relying on observation and evidence law familiar from prior SFB titles.

Victim and Authority

Magnus Mortuga—celebrated submarine captain and theatre impresario—is found dead in the Illusion Theatre. Captain Seafoam serves as interim authority coordinating crew cooperation and submarine access; Seafoam is also a voiced suspect with independent suspicion tracks.

Suspects Hub

Eight voiced suspects crew the Mortuga during the murder window: Symmetry Silkmoth, Dirk Dansom, JD Wirman, Zacharias Zephyr, Madam Tadpole, Godrik Gripp, Mariana Moon, plus Captain Seafoam. Visit suspects hub for interview order tips and evidence pairings without naming the culprit.

• Detective Grimoire — player protagonist, notebook and deduction host.
• Sally Spears — partner, hint commentary, interview interjections.
• Magnus Mortuga — victim, Captain's Cabin lore, theatre history.
• Captain Seafoam — authority figure and suspect with bridge alibi threads.
• Symmetry Silkmoth — theatre director, Illusion Theatre access expert.
• Dirk Dansom — quartermaster, cargo and night watch routes.
• JD Wirman — engineer, switchboard and Engine Room maintainer.
• Zacharias Zephyr — navigator, compass and weather log keeper.
• Madam Tadpole — wellness officer, payroll and spa supply chains.
• Godrik Gripp — bosun, hull integrity and Airlock Grotto duties.
• Mariana Moon — performer, rehearsal schedules and Dream Chamber ties.