Paul O'Neill		63 y.o.	rating 29/100
Terry O'Quinn	Won Primetime Emmy.	74 y.o.	rating 65/100
Harry O'Reilly		2025 y.o.	rating 76/100
Ed O'Ross		80 y.o.	rating 81/100
Jim O'Rourke		57 y.o.	rating 28/100
P.J. O'Rourke		78 y.o.	rating 46/100
Milo O'Shea	Nominated for BAFTA Film Award.	100 y.o.	rating 9/100
Paul Oakenfold		62 y.o.	rating 60/100
Jack Oakie	Nominated for Oscar.	122 y.o.	rating 81/100
Tom Skerritt	Nominated for 2 Golden Globes.	92 y.o.	rating 88/100
Simon Oakland		110 y.o.	rating 17/100
John Oates		78 y.o.	rating 64/100
Warren Oates		98 y.o.	rating 1/100
Devin Oatway		48 y.o.	rating 51/100
Matthew Obenshain		45 y.o.	rating 93/100
Ken Ober		69 y.o.	rating 25/100
Philip Ober		124 y.o.	rating 86/100
Diether Ocampo		50 y.o.	rating 65/100
Ric Ocasek		77 y.o.	rating 4/100
Hidy Ochiai		86 y.o.	rating 51/100
Mauricio Ochmann		48 y.o.	rating 92/100
Jimi Blue Ochsenknecht		34 y.o.	rating 96/100
Uwe Ochsenknecht		70 y.o.	rating 50/100
Bill Oddie		85 y.o.	rating 75/100
Clifford Odets		120 y.o.	rating 84/100
Dick Warlock		86 y.o.	rating 26/100
Steve Oedekerk	Nominated for Oscar.	64 y.o.	rating 15/100
Reinout Oerlemans		55 y.o.	rating 89/100
Nick Offerman		56 y.o.	rating 4/100
Carter Beauford		68 y.o.	rating 80/100
Ian Ogilvy		82 y.o.	rating 62/100
Åke Ohberg		121 y.o.	rating 47/100
Stanley Kramer	Nominated for 9 Oscars.	112 y.o.	rating 50/100
Chikao Ôtsuka		97 y.o.	rating 41/100
Arvo Ojala		106 y.o.	rating 12/100
Eiji Okada		106 y.o.	rating 48/100
Junichi Okada		45 y.o.	rating 6/100
Leon Beaumon		128 y.o.	rating 69/100
Gene Okerlund		87 y.o.	rating 11/100
Daniel Okrent		78 y.o.	rating 53/100

Actor