Characters in The phantom of Pine Hill

Frank Hardy

Also in Together with the Hardy Boys, The mystery at the moss-covered mansion, The Scarlet Slipper Mystery, The Double Jinx Mystery

Joe Hardy

Also in Together with the Hardy Boys, The mystery at the moss-covered mansion, The Scarlet Slipper Mystery, The Double Jinx Mystery

Nancy Drew

Also in The Secret of the Old Clock, The Hidden Staircase, The Bungalow Mystery, Together with the Hardy Boys, The Mystery at Lilac Inn, The Secret at Shadow Ranch, The Secret of Red Gate Farm, The Clue in the Diary, Nancy Drew, Girl Detective, Nancy's Mysterious Letter

Bess Marvin

Also in The Secret of Red Gate Farm, The Message in the Hollow Oak, The Haunted Bridge, The Clue of the Tapping Heels, The Mystery of the Brass Bound Trunk, The clue in the jewel box, The Secret in the Old Attic, The Mystery of the Tolling Bell, April Fools Day, The Clue of the Leaning Chimney

George Fayne

Also in The Secret of Red Gate Farm, The Message in the Hollow Oak, The Haunted Bridge, The Clue of the Tapping Heels, The Mystery of the Brass Bound Trunk, The clue in the jewel box, The Secret in the Old Attic, The Mystery of the Tolling Bell, April Fools Day, The Clue of the Leaning Chimney

Ned Nickerson

Also in Together with the Hardy Boys, The Mystery of the Brass Bound Trunk, The Secret of the Wooden Lady, The Mystery at the Ski Jump, The spider sapphire mystery, Mystery of the Glowing Eye, Race against time

John Rorick

Mrs. Holman

Burt Eddleton

Also in The Mystery at the Ski Jump, The spider sapphire mystery

Dave Evans

Also in The spider sapphire mystery

Fred Jenkins