Pycal is a mysterious man of unknown origin who at first glance, has supernatural abilities and appears to be virtually indestructible. He first appears as the primary antagonist in the manga chapter "Magician" that was adapted into the Green Jacket episode The Man They Called a Magician, he later resurfaces in Return of the Magician and Is Lupin Still Burning?.
Pycal appears to have vast scientific knowledge, as well as genuine magical skill, as he manages to craft himself a hardened second-skin to avoid burn damage as well as displaying the ability to fly and shoot fire from his fingers. While the crafty work of Lupin and Jigen initially prove his "powers" are nothing more than trickery, his reappearance in "Lupin III: Return of Pycal" hint that he indeed possesses otherworldly powers (as he returns after what seemed like an unavoidable death and can now teleport and telekinetically block bullets).
- His name is based on the alcoholic grain liquor Paikaru (more commonly known as Baijiu). It is why Lupin jokes about his name being a drink and apart from the TokyoPop manga translation, the joke is lost in translation due to TMS officially translating his name as Pycal.
- In the 1979 Italian dub, his name is changed to Whiskey. The reason why was to preserve a joke that Lupin makes after seeing him for the first time and calling him a drink. It was reverted back to his original name for the 1987 redub and The Return of the Magician. For Is Lupin Still Burning?, it was changed back to Whiskey.
- In Chapter 17 of the manga, Pycal had a wife who dealt with explosions including exploding knives and knows how to use a gun. Her actions were similar to the bomber who appeared in When the Seventh Bridge Falls. After Pycal got murdered by the falls, she took revenge on Lupin. As well as having a wife, before his death he also trained a bunch of hitmen to take out Lupin.