O'brien, Mike – 2
O'bryan, Sean – 3
O'byrne, Brian F. – 41
O'connell, Deirdre – 5
O'connell, Jerry – 4
O'connor, Derrick – 2
O'dea, Mike – 2
O'donnell, Jerry – 1
O'donnell, Rosie – 1
O'dowd, Chris – 22
O'gorman, Mike – 0
O'grady, Ciaran – 0
O'halloran, Brian – 43
O'hara, Catherine – 2
O'hara, David – 37
O'hare, Denis – 22
O'heir, Jim – 1
O'kane, Deirdre – 2
O'keefe, Jodi Lyn – 15
O'leary, Matt – 1
O'leary, William – 3
O'Malley, Kerry – 1
O'nan, Ryan – 4
O'neil, James Joseph – 2
O'neill, Conor – 1
O'neill, Ed – 3
O'neill, Mike – 1
O'neill, Thomas Philip – 2
O'reilly, Harry – 7
O'reilly, Stephen – 6
O'ross, Ed – 5
O'suilleabhain, Tomas – 3
Oakley, Sundra – 1
Oates, Warren – 1
Oberst Jr., Bill – 1
Ocean, Ivory – 1
Odenkirk, Bob – 11
Oerly, Brian – 4
Offerman, Nick – 87
Oh, Sandra – 3
Okuma, Enuka – 2
Ólafsson, Ólafur Darri – 4
Olazabal, Jason Manuel – 21
Oldman, Gary – 208
Olear, Doug – 12
Olgeirson, Linda – 1
Oliver, Ingrid – 2
Oliver, Maceo – 1
Oliver, Mark – 2
Olivieri, Dawn – 1
Olivo, America – 23
Olmos, Edward James – 1
Olsen, Eric Christian – 4
Olson, Kaitlin – 6
Olyphant, Timothy – 69
Omahyra – 1
Omari, Morocco – 1
Onaodowan, Okieriete – 2
One Blood, Willi – 3
Ong, Jack – 1
Oparei, Deobia – 4
Oquendo, Angel – 1
Ora, Rita – 3
Orange, Rashad – 2
Ordway, Melissa – 3
Orman, Roscoe – 1
Orozco, Mario – 1
Orr, Christopher – 8
Orser, Leland – 4
Ortega, Edvin – 1
Orth, Zak – 1
Ortiz, John – 30
Ortiz, Karina – 2
Ortiz, Kattia – 5
Ortiz, Michael – 8
Ortiz, Victor – 1
Orton, Randy – 9
Orwig, Rob – 3
Osbourne, Ozzy – 1
Oschino – 1
Osment, Haley Joel – 0
Oswalt, Patton – 4
Otis, Billy – 21
Otto, Rick – 6
Overton, Kelly – 14
Overton, Rick – 4
Owen, Clive – 21
Owen, Rena – 7
Ozerov-Meyer, Alex – 1
Ozsan, Hal – 3