Characters in The Mystery of the Brass Bound Trunk

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

Nancy Drew's Father

Carson Drew

Also in The Secret of the Old Clock, The Hidden Staircase, The Mystery at Lilac Inn, The Secret at Shadow Ranch, The Secret of Red Gate Farm, Password to Larkspur Lane, The Message in the Hollow Oak, The Clue of the Tapping Heels, The mystery at the moss-covered mansion, The clue in the jewel box

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 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, The Secret of the Wooden Lady

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 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, The Secret of the Wooden Lady

Ned Nickerson

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

Hannah Gruen

Also in The Secret of the Old Clock, The Hidden Staircase, The Bungalow Mystery, The Mystery at Lilac Inn, The Secret at Shadow Ranch, Password to Larkspur Lane, The Message in the Hollow Oak, The Clue of the Tapping Heels, The Secret in the Old Attic, The Clue of the Leaning Chimney

Effie Schneider

Also in Password to Larkspur Lane, The Secret in the Old Attic

Mrs. Joslin

Nestrelda Joslin

Senora Zola

Doris Trenton

Henry Washburn