I'm rewatching TOS, and I noticed some things about the Romulans in the two episodes they were features in that I really hadn't noticed before.
1. All of the Romulan males have curly hair in a regular, human-like hairstyle, which made it easy for Kirk to infiltrate the Romulan ship and pose as one of the crew. None of them had hairstyles that looked like Spock's.
2. The hairstyles for all Romulans shown in TNG were based on the helmets worn by the Romulan centurions in TOS.
3. The Romulans seem to have a reverence for their Vulcan cousins, which was completely nonexistent in TNG onwards, other than by the Romulan underground.
4. The Female Romulan commander was the only Romulan female ever shown in TOS.
1. All of the Romulan males have curly hair in a regular, human-like hairstyle, which made it easy for Kirk to infiltrate the Romulan ship and pose as one of the crew. None of them had hairstyles that looked like Spock's.
2. The hairstyles for all Romulans shown in TNG were based on the helmets worn by the Romulan centurions in TOS.
3. The Romulans seem to have a reverence for their Vulcan cousins, which was completely nonexistent in TNG onwards, other than by the Romulan underground.
4. The Female Romulan commander was the only Romulan female ever shown in TOS.