45 of 50
45. Bonnie Hammer
President, NBCU Cable Entertainment and Universal Cable Productions
2009 rank: 47
Age: 60

Her hugely successful portfolio of networks includes feel-good USA and fan favorite Syfy. She just needs to make sure to keep the hits coming for Comcast, which has agreed to acquire control of NBC Universal, pending a regulatory nod.

NEXT: Lauren Zalaznick
Last updated September 30 2010: 2:47 PM ET
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