A quintessential everywoman, a supervillain twice over, the ultimate scene-stealer, and a comedic force of nature, there is no actor working right now that has the same undeniable presence as Kathryn Hahn. Since staking her claim with a head-turning performance in "How to Lose a Guy in 10 Days," she has taken on an audaciously wide range of characters, using her unique talents to bring single mothers and interdimensional witches to life with equal levels of craft and care.

This has earned her a resume that reads different from many of her contemporaries, not only because of the sheer variety of roles, but because not a single one of them is forgettable. In trying to put together this list of her best work, it felt as though we were splitting hairs between a cadre of characters all distinguished and brilliant in their own way. As such, we narrowed our focus...