TV-Series
Description
Originally known as Agent Silver, he lost his parents young and trained at a spy academy. Serving an unspecified kingdom, he partnered with Agent Purple to combat the criminal organization Jackal and its leader, Dr. Neo. Their actions temporarily halted Jackal, though Dr. Neo later revived it. Roughly 50 years before the main events, Silver confronted fellow agent Agent Clover, who attempted to unleash the forbidden weapon Pandora's Ark on a country. In the ensuing conflict, Silver sustained a permanent injury to his left eye, while Clover lost his right hand. This encounter transformed Clover into the antagonist Professor Clover.

Retiring from espionage, Silver became a legendary phantom thief. During a castle heist, he discovered the royal treasure stolen and the castle rigged with explosives. The dying king and queen pleaded with him to save their infant daughter. Silver rescued the baby, naming her Diamond Queen after her diamond-pupiled golden eyes, and raised her as his adoptive granddaughter. Years later, attempting to steal the Time Telling Goddesses from the Jones mansion, he encountered young heir Jack Jones. When Professor Clover and Lady Doubt attacked Jack for a treasure, Silver intervened, deciphering a hidden message from Jack's parents and fighting the assailants. Impressed, Jack became his apprentice Joker. Silver later took in another apprentice, Spade, after Joker and Queen encountered him during a ship heist. He also trained Roko, a genetically modified talking dog.

Silver possesses long white hair tied loosely with a pink hair tie, a white beard, and blue eyes. He wears a monocle over his injured left eye. His typical attire includes a white suit jacket with gold buttons, white suit pants, a pink shirt, yellow tie, white gloves, a white cape with a gold chain, and a white silk hat adorned with a pink "H." He often carries a gold-topped cane.

He exhibits a kind and caring nature, especially towards his apprentices, treating them as family despite occasional reluctance to admit it due to embarrassment. He displays moments of immaturity, engaging in playful grudges or flirtatious behavior, including asking viewers to introduce him to their mothers and following women. A recurring comedic element involves him frequently suffering back injuries. He occasionally breaks the fourth wall to explain plot details or tricks.

His relationship with Queen is deeply paternal; he gifted her a diamond necklace that later saved her from an attack, declaring she was "saved by my love." He risks his life for Joker, shielding him from Queen's sword. He similarly cares for Spade, understanding their shared experience of parental loss. Silver maintains a longstanding rivalry with Professor Clover rooted in their past as fellow agents. He also harbors a romantic interest in his former partner, Agent Purple, reuniting with her to battle villains later.

Additional details include his favorite food being cream stew, his birthday on October 7, and a shared background of orphanhood with his apprentices. The running gag of his back problems occurs across various media.