The Big Bang Theory‘s cast and slews of other celebrities turned out for “A Night of Sardi’s” to benefit research into Alzheimer’s disease.

Check out the interviews below with David Hyde Pierce, Peter Gallagher, Jane Seymour, Joey McIntyre, Wayne Brady, Jim Parsons, Simon Helberg, check out Kristen Bell and Zachary Levi singing up some tunes and clips from other performances!