This evening, I watched John Barrowman don a fake beard and some glasses in order to surprise a photographer (and latter day saint - although not in the Mormon way) whose family wanted her to finally have the chance to sing live on national TV with Dionne Warwick. It's a dream that has eluded most of us, to be fair, so the audience seemed comparatively empathetic.
Barrowman's only other tools were a tortoise and a cardigan, yet he totally nailed it. She didn't know it was him or anything. Truly, he is a master of characterization. Although he didn't dress up to surprise the young lad whose sister watched his secret videos of himself dancing and sent them in; or the seventy year old woman who everyone in the village agrees is very nice.
Presumably you can have too much of a good thing, even on pap like Tonight's The Night.