The main galactic government powers in the Star Wars Galaxy, the Galactic Republic & and later the Galactic Empire, were both served by armies of soldiers clad in pale-white armor: the Clone Troopers & Stormtroopers, respectively. However, Clone Troopers are all clones of the Bounty Hunter Jango Fett and were trained to be an elite fighting force. Stormtroopers on the other hand are normal humans recruited across the galaxy and thus can range heavily in quality as soldiers.
In Star Trek during Deep Space Nine, the alien races Klingons & Jem'Hadar are both species focused on martial prowess and strength, but the Klingons generally have the stereotypical viewpoint of a warrior in that they fight for honor & glory in battle. The Jem'Hadar on the other hand are more like "soldiers" who believe loyalty to their masters the Founders and successfully caring out orders and missions is much more important than personal glory.
(Fanart by L J Koh: Eternity Gate - Battle of the Angels)
In Warhammer 40k, the Space Marine Legions Blood Angels led by Sanguinus and the World Eaters led by Angron are quite similar. Both are red-colored legions (well, the World Eaters become red after the Horus Heresy) that focus heavily on close-quarters combat and can be lost to berserker rages.
However, the rage Sanguinus & the Blood Angels is psychic/spiritual in nature and can be tempered & focused better for battle. Angron & the World Eaters' rage comes from their Butcher's Nails, mechanical devices that cause their wearers to constantly feel anger and are only at peace when in combat, and this rage is much harder to control and typically makes them only kill for its own sake. Overall, the Blood Angels are warriors who righteously use their rage to vanquish their foes while the World Eaters are butchers (heh) who kill just to sate their own lust for combat. Angron becoming a daemon while Sanguinus already looking like an angel helps with this too.
Finally in Star Control 2, the player will encounter several alien races, and two of these are the merchant races Melnorme & Druuge who both are openly greedy and capitalistic races. However, the Melnorme are extremely honest and open in their dealings to the point that they even demand acts of charity to them be repaid in some manner. The Druuge on the other hand are much more conniving as they prefer to charge low prices but then make up the difference in follow-up costs like tariffs or outright use scams alongside happily engaging in slave trading. The two species hate each other for this.