The Giant - a huge, monstrous giant that lived in Cloudland.  It is unknown whether or not he found the Chest of Gold on his own or if he was a servant of Dahlia's.  When Sir Graham discovered the Giant was carrying the Chest, he slipped on his ring of invisibility and waited.  Eventually, the Giant fell asleep, and Graham took the Chest.  Years later, a three-headed dragon was living in Cloudland and there was no sign of the Giant.

The Dragon - the Sorcerer who stole Merlin's Mirror set a monstrous beast to guard it.  This beast was a fire-breathing dragon.  Once Graham found the Dragon's lair, he decided to distract the creature, so he threw a bucket of water at it.  By sheer luck, the water hit the Dragon's mouth and extinguished his flame.  Embarrassed and unarmed, the Dragon removed a boulder blocking the exit and hurried out of the cavern.  No one knows what became of it.