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Biography
Trivia
IMDbPro
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Biography
Kate B. O'Brien
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Mini Bio (1)
Family (1)
Trivia (2)
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Mini Bio
Kate B. O'Brien is known for
The Fighter (2010)
,
Ted 2 (2015)
and
The Expecting (2020)
.
Family
Relatives
Conan O'Brien
(Sibling)
Trivia
Kate is the sister of television talk show host
Conan O'Brien
and screenwriter
Jane O'Brien
.
Cousin of
Denis Leary
,
Jack Leary
and
Ann Leary
.
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