The "Star trek" canon concordance
Actors: O is for Outrageous
- O'Brien, Gary: USS Voyager: Crew
- O'Brien, Joycelyn: Cadet Mitena Haro
- O'Brien, Paul F: Geral
- O'Connell, William: Ambassador Thelev
- O'Connor, Tim: Ambassador Briam
- O'Donnell, Annie: Keena
- O'Farrell, Conor:
- Oglesby, Randy:
- Oglesby, Thomas: Scholar
- O'Hagan, Michael: Captain Fraddock
- O'Hanlon Junior, George: Transporter Chief
- O'Heir, John: Cuckold
- O'Herlihy, Gavin: Maje Jabin
- O'Hurley, Shannon: Programmer
- Oliver, David: Being
- Oliver, Susan: Vina, Vina
- Olson, Heather Lauren: Jil Orra
- O'Mahoney, Stephen: Dinaali Medical Technician
- Opatoshu, David: Anan 7
- Oppenheimer, Alan:
- O'Neil, Tricia: Captain Rachel Garrett - Kurak
- O'Neill, Amy: Annette
- O'Neil, Tricia: Korinas
- O'Quinn, Terry: Admiral Pressman
- Orden, Jack R: Human
- O'Reilly, Cyril: Nahsk
- O'Reilly, Robert:
- Ormeny, Tom: Klingon First Officer
- O'Ross, Ed: Gaavrin
- Orr, Jordan: Young Malik
- Orser, Leland:
- Ortega, Jimmy: Torres, Torres
- Ortega-Miró, Richard: Rainer
- Orth-Pallavicini, Nicole: Kareel
- Osborne, Holmes: Enolian Official
- Overton, Frank: Elias Sandoval
- Owen, Michael: Branson
