“By the second day of incubation, any cells that have undergone reversion mutation give rise to revertant colonies, like rats leaving a sinking ship; then the ship... sinks.”

Joe Turkel - Dr. Eldon Tyrell

“- Melman: What, you don't have doctors here?
- Stephen: Well not any more.
- Melman: What if you catch a cold or something.
- Additional Giraffe: We go over to the dying holes, and we die.”
David Schwimmer - Melman
Stephen Kearin - Stephen
Harland Williams - Additional Giraffe

“- Pepi Katona: I would say it's a nervous breakdown. What do you think?
- Doctor: It appears to be an acute epileptoid manifestation and a pan phobic melancholiac with indication of a neurasthenia cordus.
- Pepi Katona: Is that more expensive than a nervous breakdown?”

William Tracy - Pepi Katona
Edwin Maxwell - Doctor

“I'll tell you my approach to medicine! It is a game in which man pits his brains against the forces of destruction and disease.”

Claude Rains - Dr. Alexander Tower

“- Young Dr. Chung: I have one sorrow, Lieutenant. That we did not have the medicine to ease your pain.
- Ted Lawson: You saved my life, Doc.”
Benson Fong - Young Dr. Chung
Van Johnson - Ted Lawson