| OÁ, Jenna von@ (2) |
| Oberoi, Vivek@ (6) |
| O'Brien, Conan (3) |
| O'Brien, Edmond (1) |
| O'Brien, Logan (2) |
| O'Brien, Margaret (4) |
| O'Brien, Mariah (1) |
| O'Brien, Pat (2) |
| O'Brien, Richard (3) |
| O'Brien, Tina (2) |
| O'Connell, Jerry (2) |
| O'Connor, Carroll (5) |
| O'Connor, Donald (4) |
| O'Connor, Frances (5) |
| O'Connor, Glynnis (0) |
| O'Connor, Renee (13) |
| O'Dell, Jennifer (2) |
| O'Donnell, Chris (5) |
| O'Donnell, Rosie (14) |
| O'Grady, Gail (4) |
| Oh, Sandra@ (4) |
| Ohama, Natsuko (3) |
| O'Hanlon, Ardal (5) |
| O'Hara, Catherine (0) |
| O'Hara, Maureen (4) |
| O'Hare, Michael (5) |
| Ohmart, Carol (1) |
| O'Keefe, Jodi Lyn (1) |
| O'Keefe, Michael (1) |
| O'Keeffe, Douglas (1) |
| O'Keeffe, Miles (2) |
| Oldfield, Mike@ (8) |
| Oldman, Gary (15) |
| O'Leary, Matt (2) |
| Oleynik, Larisa (50) |
| Olin, Lena (6) |
| Oliver, Christian (2) | |
| Olivier, Laurence (7) |
| Olmos, Edward James (4) |
| Olsen, Mary-Kate and Ashley (21) |
| Olson, Heather Lauren (3) |
| Olyphant, Timothy (2) |
| O'Mearain, Lochlann (3) |
| Omundson, Tim (2) |
| O'Neal, Ryan (2) |
| O'Neal, Tatum (2) |
| O'Neill, Ed (2) |
| Ono, Yoko@ (6) |
| Ophüls, Max@ (3) |
| O'Quinn, Terry@ (2) |
| Orange, Jason (2) |
| Orbach, Jerry (2) |
| Oreiro, Natalia (3) |
| Ormond, Julia (6) |
| O'Rourke, Heather (2) |
| Orr, Ashley Rose@ (3) |
| Orrico, Laura (1) |
| Ortiz, Scarlet (2) |
| Osbourne, Jack (0) |
| Osbourne, Ozzy@ (41) |
| Osment, Haley Joel (5) |
| Osmond, Donny (7) |
| Oteri, Cheri (2) |
| O'Toole, Peter (7) |
| Otto, Barry (1) |
| Otto, Miranda (4) |
| Ousmane, Sembène@ (3) |
| Outhwaite, Tamzin (3) |
| Overton, Rick (4) |
| Owen, Chris (2) |
| Owen, Clive (66) |
| Owens, Chris (2) |
| Owens, Gary@ (2) |
| Oxenberg, Catherine (3) | |