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| Image | Author | Nationality |
|---|---|---|
|
Mohammed Omar |
Afghani Clergyman |
|
Jerry Only |
Musician |
|
Bob Odenkirk |
American Actor |
|
Lupe Ontiveros |
American Actress |
|
John Opie |
English Artist |
|
George Oppen |
American Poet |
| Harry Oppenheimer |
South African Businessman |
|
|
Billy Ocean |
British Musician |
|
Jerry Orbach |
American Actor |
|
Susie Orbach |
English Psychologist |
|
Baroness Orczy |
Hungarian Novelist |
|
Tony Orlando |
American Musician |
|
William of Occam |
English Philosopher |
|
Julia Ormond |
British Actress |
|
Leo Ornstein |
American Composer |
| Jose C. Orozco |
|
|
|
Benjamin Orr |
American Musician |
|
Ric Ocasek |
Musician |
|
John Boyd Orr |
Scottish Politician |
| Leonard Orr |
American Celebrity |
|
|
Stacie Orrico |
American Musician |
|
Peter Orszag |
American Economist |
|
Daniel Ortega |
Nicaraguan Statesman |
|
Willard Van Orman Quine |
|
| Solomon Ortiz |
American Politician |
