"Naga Sadow's tomb is a death trap. Tell the overseers we aren't ready."
"And die as failures inside the Academy? I'll take my chances with the other acolytes."
"It's every Sith for themselves down there. We barely made it out alive... and Coris didn't make it out at all."
"Coris was weak. Another acolyte crosses me, they'll get what they deserve."
"Fine, fine… just wait until the medpac kicks in, all right?"
―Jonos and Kolbrun[src]

Coris was an acolyte in the Korriban Sith Academy during the Cold War. He ventured into the Tomb of Naga Sadow along with acolytes Jonos and Kolbrun and perished there.