Seargant Zack Allan
SPECIES: Human
HOMEWORLD: Earth
DATE OF BIRTH: Unknown
ORGANISATION: Army of Light
STATUS: Deputy B5 Security Chief
ALLEGIANCE: Light
ACTOR: Jeff Conaway

Zack is a former member of Nightwatch, an Earthforce organisation.

Zack Allen is second in command to Garibaldi as part of Babylon 5's security team. He had always been a loyal member of the Babylon 5 security team until he joined Nightwatch in 2259. Zack thought he could do good by belonging to another organisation which helped protect Earth. He also saw the 50 extra credits a week as easy money. He found himself increasingly torn between his duties aboard Babylon 5 and Nightwatch, which came to a conclusion when Babylon 5 severed relations with Earthforce in 2260.

Once Zack had made the choice to leave Nightwatch, after they were instructed to seize control of Babylon 5 and arrest the command crew, he quite happily played along with Nightwatch and helped Sheridan trap them until they could be transported back to Earth. Zack has always been good at following orders, and has a keen eye for women.

Zack is now Cheif of Security for Babylon 5

(Above & below) Zack Allen seen here as Security Cheif for Babylon 5

(above) Zack Allen can be seen here, in the cockpit of a Starfury