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Bill Hader breaks cover after unsettling party encounter with Nick Reiner at Conan O'Brien’s Christmas bash

Bill Hader was spotted in his first outing since he had an unnerving exchange with Nick Reiner at Conan O'Brien’s Christmas ...

Conan O’Brien Threw a Holiday Party to Forget a Bad Year. Then Nick Reiner Arrived.

Bill Hader and other guests worried the erratic attendee, 6-foot-3 and 230 pounds, had wandered in off the street.