J. Nygren was a member of Starfleet in the 22nd century.
In January of 2155, Nygren worked in EGIL at the Fleet Operations Center on Earth. Nygren's office was located in room 1332. (ENT: "Demons" set artwork)
Nygren's name was seen on directory listings seen on the set of "Demons".
J. Nygren was named after Enterprise first assistant cameraman Jim Nygren.