PLAYED BY: Dwight Shultz
SPECIES: Human Male

Highly talented Starfleet systems diagnostic engineer. Barclay had a tendency to spend more time inside the holodeck than in real social situations. He was pivotal in helping the Enterprise escape disaster from an invidium contamination in 2366.

PLAYED BY: Charley Lang
SPECIES: Human Male

Officer on the Enterprise, serving in the engineering department. Duffy was unintentionally responsible for dispersing a contagion of invidium which caused various systems to malfunction.