Vanessa Bayer has been an "SNL" cast member since 2010, but she's been developing her knack for wild, earnest characters her entire life. 

Best known for her Miley Cyrus impression. Bayer costars in the new Amy Schumer film "Trainwreck" as her slightly batty coworker Nikki. We caught up with Bayer to discuss her web series Sound Advice, her favorite kinds of characters, and -- oh my God -- her brilliant one-second Jennifer Aniston impression. 

"Trainwreck" opens July 17.