Characters in The Twisted Claw

Frank Hardy

Also in Crawling with Zombies, Deadly Strategy, The Tower Treasure, Time Bomb, At All Costs, Break-Up!, The House on the Cliff, The Secret of the Old Mill, Hunting for Hidden Gold, The Shore Road Mystery

Joe Hardy

Also in Crawling with Zombies, Deadly Strategy, The Tower Treasure, Time Bomb, At All Costs, Break-Up!, The House on the Cliff, The Secret of the Old Mill, Hunting for Hidden Gold, The Shore Road Mystery

The Pirate King

Fenton Hardy

Also in The Great Airport Mystery, The Clue of the Broken Blade, The Flickering Torch Mystery, The Secret Panel, The Secret of Skull Mountain, The Blackwing Puzzle, Mystery of the Desert Giant, The Mystery of the Spiral Bridge, The Jungle Pyramid, The Firebird Rocket