Klydeker existed around 3963 BBY and was a member of the Jedi Order. He was also a member of the clandestine Jedi Covenant, a Jedi organization that was secretly attempting to prevent the return of the Sith, and he was completely devoted to Krynda Draay, the organization's founder.
Haazen giving an order to Garragor and Klydeker
When Zayne Carrick, a fugitive padawan, was brought inside the Draay Estate by Jedi Master Xamar, Klydeker, along with many other Jedi, was present during the confrontation between Zayne and Lucien Draay, his former master. During this event, Haazen, Krynda's assistant, instructed Klydeker and his fellow Jedi Garragor to retrieve diagnostic tools from a large red container that was nearby. Unbeknownst to them, the container also held Sith artifacts; this was before Haazen seized control of the Covenant and revealed himself to be a servant of the dark side of the Force.
Later, he was found lying next to Garragor in a courtyard, having been struck down by Haazen after they attempted to halt his descent into madness.