- "The rats have nibbled at the bait!"
- -Marl Mankroyd
Marl Mankroyd was High Leaguesmaster before Ruptus Pentephraxis. During the events of Cloud Wolf, Marl Mankroyd ran a cargo of precious gems in The Great Sky Whale, attempting to line his own pockets. He was defeated by Wind Jackal and Quint when the sky pirates attacked, and The Great Sky Whale hurtled into Open Sky.