He was a gold miner in Colorado who was taken captive by the Nome King. Ruggedo performed an enchantment on the miner making him ugly, and paraded him before his Nomes, calling him the Ugly One. He was then imprisoned in the Metal Forest.
Ten years later the Shaggy Man read about his brother's plight in Glinda's Great Book of Records and decided to go in search of him. When Shaggy and his companions found the Ugly One, he was reluctant to be rescued because of his appearance. The enchantment was broken by a kiss from a fairy, specifically Polychrome.
Although nicknamed "Wiggy" in the stage-play, Baum never revealed his name in his books. Later stories indicated that his given name was Ichabod, but he later changed it to Daniel. Queen Ann in Oz revealed that his surname (as that of his brother) is Mann.