In his debut, he dropped a stick to Mary Lennox, only because it hit her head, she threw the stick at him, much to the anger of Ben Weatherstaff. Robin had known where the key to the secret garden was hidden since the death of its owner, the late wife of Archibald Craven, but he waited to tell it to the right person, which eventually turned out to be Mary, whom he taught to understand animal speech in song. Robin was voiced entirely by Frank Welker.