Whirlwind, her little sister Frosty, her unnamed dad X.x and her mom Sea Urchin (Urchin for short) :D
A little about them...

Frosty: her wings are way too big causing her to not be able to fly :( yet she's very energetic

Sea Urchin: close friends to Queen coral, wears a sea weed scarf and a band of pearls around her tail, is very quiet

The dad: (yes very mysterious name XD) very grumpy and evil, always expects the best from Whirlwind but eventually kicks them out of the ice kingdom to live with their mother due to Frosty's failing wings

Whirlwind: well what ever you think of me lol, and Whirlwind has three weird spikes on her head which no one really knows what that is