Elite Captain Quartet

The Elite Captain Quartet is a division of the Koopa Troop commanding the Goomba Squad and the Minions. The group debuted in Mario & Luigi: Superstar Saga + Bowser's Minions and later reappeared in Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey.

Mario & Luigi: Superstar Saga + Bowser's Minions
The Elite Captain Quartet is first formed in Mario & Luigi: Superstar Saga + Bowser's Minions, when Captain Koopa Troopa becomes the fourth Captain in Teehee Valley to help the Goomba Squad in their mission to save Bowser. At the end, the king was about to reinstate Captain Goomba as captain of the Minions but remembers he was the one who caused his amnesia and takes his flag away.

Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey
In Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey, the Captains regain their status as captains through unknown means. They are fought twice in Bowser's Castle (east), in Goomba Squad, Go! and in The Power of Junior where they are regular troops with King Bob-omb as the captain. They also appear together in the level The Trio Clash! in Bowser's Castle (west), they rescue Wendy from the Best Fitness Friends. Morton and Ludwig each tell Bowser Jr. that the quartet saved Bowser in the Beanbean Kingdom once.