Janek'ajan was the Jem'Hadar First stationed to the Cardassian warship Sherouk. (Star Trek: Sigils and Unions) Unlike his Vorta commander, Dasreen, Janek'ajan immediately suspected something was amiss when Gul Berat encouraged Dasreen to go on the rec deck alone with him. The Cardassian's neurological impairment was no cause, in his mind, to abandon all caution--especially since he seemed to be engineering some very suspicious and potentially dangerous circumstances for the Vorta.