Trivia: Halo 3: ODST
- Actor Allusion: Three members of the squad are played by actors from Firefly, including Buck, and occasionally give a Shout-Out to the show in rare dialog.
- Hey, It's That Voice!:
- Nathan Fillion is Buck, Alan Tudyk is Mickey, and Adam Baldwin is Dutch. The trio work together in one level.
- Tricia Helfer (Black Cat, EDI, Kerrigan, Number Six) is Dare.
- Nolan North is Romeo.
- In the Japanese version, Sadie is Rin Tohsaka, Hazumu Osaragi, and Momo Kawashima.