In a Play
And the winner is Frances McDormand. Wow, this is her first win and only second nomination ever (in 1988 for Streetcar Named Desire). She spends the entire time thanking her other cast members and saying how great her playwright is. And, then she thanks her family (who watched her come and go for 30 years with funny wigs and dialects).
In a Musical
And the winner is Sutton Foster. Second win (last won for Thoroughly Modern Millie). After thanking her current love Bobby Canavale and his son, she thanks her dresser who has been with her for 6 years, as he's leaving to pursue his dreams of being an artist in Cape Cod.