This is the first time we see Andoria in any Star Trek series
Trivia: The Andorians homeworld is referred to as both Andor and Andoria in the various series. The Andorians and Aenar live on the moon while the planet is a gas giant.
Trivia: Throughout the series, Shran has referred to humans, and Archer in particular, as "pink skins". In an ironic twist, here, Jhamel calls Shran a "blue skin".
Goof: The Romulan General is referred to as Admiral in this episode.
Jhamel: You have an interesting mind, Captain. Many facets.
Archer: Thank you.
Jhamel: Some of those facets are in conflict.
Shran: That explains a lot.
Phlox: (speaking to Trip about love) This is one ailment that is universally untreatable. You'll have to suffer through it.
Shran: Forget it, Captain. They've never even helped defend their own world.