- Acting for Two: When he's not fighting with Delta Squadron as part of the Aerial Knights, Ryohei Kimura is busy fixing up their variable fighters.
- Actor Allusion:
- This is not the first time for Reina to be an Idol Singer.
- No wonder why Messer doesn't know how popular he is.
- Mirage was also a mecha pilot in another world. Ditto Hayate, though his is more of the scale model variety.
- Arad Mölders already flied a Cool Plane before.
- Defictionalization: Walküre is now a legit group, with Minori Suzuki and JUNNA as its lead singers (but not as their characters though but themselves), with Kiyono Yasuno, Nozomi Nishida and Nao Touyama (Kaname, Makina and Reina respectively) as its members too, similar to Fire Bomber before it.note
- Fan Nickname:
- "Scarfish" for the big mercat that keeps stealing food (and getting away with it) from the Ragnyannyan café in episode 3.
- Also some fans refer to Freyja as "Space Honoka" for some reason.
- "Windbags" is a derogatory name for the Windermerians, particularly for Bogue and Roid.
- I Knew It!: A lot of people had a clue that Roid is going to "evil conqueror" and that Keith is going to kill him. Episode 26 had finally confirmed it.
- Irony as She Is Cast: KENN, Bogue's voice actor, is rather well known for his singing and frequently gets roles which includes either singing in-series or getting character songs, even having a professional band of his own. Cue this series (in a franchise built on The Power of Rock), and Bogue doesn't sing a note.
- No Export for You: Just as with other Macross series, the legal disputes of several licensing companies makes sure that Delta won't see any legal release in the West, whether it would be physically or digitallynote . However, the Blu-ray release has English subtitles, so fans in the West can now legally obtain an officially translated version.
- Non-Singing Voice: While most of Walkure's voice actresses do their own singing, Mikumo has separate speaking and singing voices (Ami Koshimizu and JUNNA, respectively).
- Relationship Voice Actor:
- Mirage and Keith are now enemies instead of allies.
- Lloyd and Bogue were Vitriolic Best Buds Childhood Friends the last time they worked together.
- Messer and Reina used be Childhood Friends with a fake relationship .
- Mikumo and Beth are both former defenders of love and justicenote .
- Star-Making Role: For Minori Suzuki and in the singing department, JUNNA.
- Talking to Himself: Kei Minegishi voices the twin brothers Theo and Xao.
Trivia / Macross Delta