Ari Ben Zayn was a Colonel in Earthforce, attached to Earthforce's Internal Affairs division, at least until his attempt to usurp Jeffrey Sinclair's post as Commander of Babylon 5.

He and Psi Corps liason Harriman Gray were on Babylon 5 during 2258 to investigate the loyalty of the Babylon 5 staff after several major incidents involing Babylon 5. The investigation was arranged by Psi Cop Alfred Bester, who held a grudge against Sinclair after the Ironheart incident, an incident that resulted in the accidental death one of Bester's fellow Psi Cops.Cite error: Closing </ref> missing for <ref> tag


Community content is available under CC-BY-SA unless otherwise noted.