In King's Landing
Last seen: Rocking a pixie cut after enduring a grueling Walk of Penance, and now looking ahead to a trial for regicide, incest, and the general usurping of her late husband's throne. Also, her daughter died on her way back home.
Last seen: Pouting in his room and refusing to eat. No, really: that's literally what the King of the Iron Throne was last seen doing... Yeah, we kind of miss Joffrey, too.
Ser Pounce, the cat
Last seen: Scurrying around Tommen's bed around the time of his Season 4 coronation. Absent since; presumably thrown from the highest tower of the Red Keep the very second Margaery Tyrell disrobed.
Last seen: Leading the Small Council during Cersei's imprisonment. Appearing vaguely bored by the sight of his naked niece crying and bleeding while covered in urine and dung.