Inside Samantha Bee's 'Not the White House Correspondents' Dinner': Will Ferrell's Roast, Alternate Timelines, Fox News In Memoriam

Will Ferrell made a surprise appearance as George W. Bush, and Steve Buscemi, Allison Janney, Norman Lear, Carl Reiner, Kumail Nanjiani, Billy Eichner, Patton Oswalt and Retta were among those in taped sketches.