H. Jierjian was a member of Starfleet in the 22nd century.
In January of 2155, Jierjian worked in PHALCON at the Fleet Operations Center on Earth. Jierjian's office was located in room 4232. (ENT: "Demons" set artwork)
Jierjian's name was seen on directory listings seen on the set of "Demons".
H. Jierjian was named after Enterprise assistant editor Harry Jierjian.