Omar Epps
Olympia Dukakis
Olivia Newton-John
Oliver Hardy
Olive Thomas
Orlando Jones
Orlando Bloom
O Henry
Orbit
ozone
Ontario
Orangutan.
owen
A name that starts with an "R" and ends with an "O" could be "Rico." Other possibilities include "Rocco" or "Reno."
Actors whose first names start with the letter O include Obba Babatundé, Orlando Jones, and Oliva di Havilland.
There is no animal that has a long o at the beginning.
Oscar
Olive.
Orc