(coexisting on another dimensional plane)
This page contains information regarding I AM ERROR, and thus may contain spoilers.
By the 2250s, he was a trusted advisor to "the Fire Wolf" (Voq), who referred to him as "The Prophet". When Michael Burnham came to warn the rebels of an impending Terran attack, Sarek mind melded with her to evaluate her intentions. (DIS: "The Wolf Inside")
Sarek was played by actor James Frain.