Characters

Cassian Merek is a major supporting character in The Emerald Semaphore of Keta-9. A former relay technician turned salvage operator, Merek becomes an uneasy ally to Rohane Voss in his search for the source of the Kestrel Clockwork Sequence.

Operating from the industrial edge of the Meridian Dockyard, Merek uses his knowledge of decomissioned comm-stations to trace anomalies that most corporate systems ignore. His pragmatic outlook contrasts with Voss’s obsessive idealism, creating much of the film’s interpersonal tension.

Director Halver is the central antagonist of The Emerald Semaphore of Keta-9. He is a senior executive within the corporate communications authority that oversees orbital relay maintenance and archival licensing. His pursuit of the Emerald Semaphore of Keta-9 places him in direct opposition to Rohane Voss and Cassian Merek.

Halver is characterized by his calculated restraint and his fascination with emergent intelligence in abandoned networks. While officially committed to restoring orbital infrastructure, he secretly funds off-ledger experiments intended to monetize residual memory signals from forgotten transmissions.

The Keta-9 Semaphore is a sentient or semi-sentient signal construct central to the plot of The Emerald Semaphore of Keta-9. It is first detected by Rohane Voss as a residual communication pattern embedded within decaying transmissions from Orbital Relay Keta-9.

The entity manifests through repeating audio-visual patterns, particularly the phrase “Emerald Semaphore of Keta-9,” which recurs in both spoken dialogue and the Kestrel Clockwork Sequence. Over time, Voss theorizes that the signal is not random noise but a self-organizing consciousness emerging from the accumulated memory fragments of abandoned relay protocols.

The Relay Choir is a collective entity featured in The Emerald Semaphore of Keta-9. Comprised of maintenance workers, signal interpreters, and residual voice imprints, the Choir blurs the line between human and machine communication.

Their voices are first heard emanating through malfunctioning relays deep within The Subsignal Corridors. Each voice is slightly desynchronized, creating a harmonic dissonance that becomes a recurring element in the soundtrack, particularly during the Kestrel Clockwork Sequence.

Role in the Story

The Relay Choir acts as both witnesses and instruments in the unfolding events. Rohane Voss deciphers their layered chants to uncover the existence of the Keta-9 Semaphore, while Cassian Merek uses their sound patterns to navigate damaged infrastructure.

Rohane Voss is the central protagonist of The Emerald Semaphore of Keta-9. He is an archivist specializing in obsolete communication protocols and forgotten data architectures. His role centers around the discovery of the mysterious phrase Emerald Semaphore of Keta-9, which sets the events of the film in motion.

Voss is depicted as a reclusive, highly methodical figure who spends most of his time in the Glassloop Archives, cataloguing remnants of pre-collapse data streams. His pursuit of the hidden signal leads him into contact with Cassian Merek and the reclusive scientist Dr. Salma Inoue.