We had a cat who always knew when you were sad or ill, and would sit with you until you were better. Weeks, sometimes.
He was gentlemanly, for a cat, but he was the top cat in the area, by the expedient of pinning an opponent to the groung with a fistful of claws in the skull and giving it a close-quarter growling, removing the claws (snick-snick-snick-snap) and strolling unconcernedly away.

A grey tabby domestic, but raised with siamese, which may have contributed to his eccentricity.

When our current cat wants to wake us, he jumps onto the TV cabinet and shifts his weight to make the cabinet creak. A big lad.