Murray, Danny and Burke, also known as the "Vandal Gang", is a nasty gang of bullies and villains in H20: Mermaid Adventures.

They tease the other ocean living residents, thieving and weave the plot, but 3 mermaids in name Rikki Chadwick, Cleo Sertori and Emma Gilbert interfere with them at all times.

Murray is the Moray Eel and he is the leader of gang, Danny is the Octopus which is often do not known much & Burke is the Hammerhead Shark who has small brain cells and who gets angry when someone tickle him.

They continue the same mischief always.