Little soldiers of Good and Evil

Gyro   (Lady Bugger)
Newton   (Little Ho)
Shamrock   (Pickled Silly)
Genie   (Fluffy Eww)

Hopefully a fifth recruit will join them soon:
Fidget   (Rosey Butt)

They may be small, but they're far from your average critters.
As "High Keepers of the Knowledge of Right and Wrong, Counselors in Moments of Temptation, and Guides along the Straight and Narrow Path", they are chosen to be the Fab Four's official consciences.

(Any resemblance with a ninja tribe is NOT coincidental)