Paul O'Neill		63 y.o.	rating 17/100
Terry O'Quinn	Won Primetime Emmy.	73 y.o.	rating 9/100
Harry O'Reilly		2025 y.o.	rating 26/100
Ed O'Ross		79 y.o.	rating 5/100
Jim O'Rourke		57 y.o.	rating 29/100
P.J. O'Rourke		78 y.o.	rating 31/100
Milo O'Shea	Nominated for BAFTA Film Award.	100 y.o.	rating 23/100
Paul Oakenfold		62 y.o.	rating 72/100
Jack Oakie	Nominated for Oscar.	122 y.o.	rating 36/100
Tom Skerritt	Nominated for 2 Golden Globes.	92 y.o.	rating 26/100
Simon Oakland		110 y.o.	rating 39/100
John Oates		78 y.o.	rating 7/100
Warren Oates		97 y.o.	rating 43/100
Devin Oatway		48 y.o.	rating 33/100
Matthew Obenshain		45 y.o.	rating 28/100
Ken Ober		68 y.o.	rating 3/100
Philip Ober		124 y.o.	rating 93/100
Diether Ocampo		49 y.o.	rating 51/100
Ric Ocasek		77 y.o.	rating 53/100
Hidy Ochiai		86 y.o.	rating 44/100
Mauricio Ochmann		48 y.o.	rating 35/100
Jimi Blue Ochsenknecht		34 y.o.	rating 51/100
Uwe Ochsenknecht		70 y.o.	rating 69/100
Bill Oddie		84 y.o.	rating 53/100
Clifford Odets		119 y.o.	rating 16/100
Dick Warlock		86 y.o.	rating 40/100
Steve Oedekerk	Nominated for Oscar.	64 y.o.	rating 8/100
Reinout Oerlemans		54 y.o.	rating 63/100
Nick Offerman		55 y.o.	rating 15/100
Carter Beauford		68 y.o.	rating 14/100
Ian Ogilvy		82 y.o.	rating 34/100
Åke Ohberg		120 y.o.	rating 81/100
Stanley Kramer	Nominated for 9 Oscars.	112 y.o.	rating 73/100
Chikao Ôtsuka		96 y.o.	rating 13/100
Arvo Ojala		106 y.o.	rating 43/100
Eiji Okada		105 y.o.	rating 24/100
Junichi Okada		45 y.o.	rating 22/100
Leon Beaumon		128 y.o.	rating 77/100
Gene Okerlund		87 y.o.	rating 23/100
Daniel Okrent		78 y.o.	rating 4/100

Actor