- For the cinematographer, see John C. Flinn III.
Flinn was captured by the Shadows and given cyberweb implants to make him compatible to serve as the central operating system of a Shadow vessel. He was placed into suspension in a sleeper tube and loaded onto the same vessel that carried around 100 other telepaths - including Carolyn Sanderson - through hyperspace to rendezvous with the Shadows' allies. He was rescued along with the others when the White Star engaged and captured the vessel.
He was placed into the freezer bank in Medlab beside Carolyn Sanderson. His final fate is unknown, as several telepaths were used during the Battle of Proxima III to shut down the Earth vessels while others were recovered later.
- The character is never seen on-screen. He is named after long-time Babylon 5 cinematographer, John C. Flinn III.