An actress beginning with an a would be Ashley Greene. She is 21 yrs old. You would know her from Punk'd, Crossing Jordan, or from the upcoming movie Twilight. (she just plays a small role in Punk'd)
* bilby * bandicoot
basil
A Bolero blouson
The bossa-nova is a lively dance. It is similar to the samba.
Brunhilde is perhaps the longest. But that is just for English language.
Betty White
Lucille BallHumphrey Bogart
No U.S. states begin with B.
Birr
* bilby * bandicoot
* beetroot * broccoli
basil
boris
bracken
beaker
bratwurst
brine