Is she shy?
Sounds crazy I know!
However... she always seemed so uncomfortable when interviewed and the only interview in which I've seen her play herself was when she was on the Daily Show with Jon Stewart. She seemed very ill at ease.
Every time she is on Fallon she assumes an identity. I haven't seen her anywhere else where she seems comfortable being interviewed. She seems to rarely give interviews.
Am I wrong? Is it just me? Do I not watch enough TV?