Yanni (later John) Alexis Mardas (2 May 1942 – 13 January 2017) was better known as Magic Alex, the nickname given to him by The Beatles when he was involved with the group between 1965 and 1969, including being head of Apple Electronics.
Mardas arrived in England in 1965, exhibiting his Kinetic Light Sculptures at the Indica Gallery. He impressed John Lennon with the Nothing Box; a small plastic box with randomly blinking lights, and allegedly said that he could build a 72-track tape machine. Mardas was then given the job of designing the new Apple Studio in Savile Row, and was in India with The Beatles at the Maharishi Mahesh Yogi's ashram in India.
In the 1970s, the anti-terrorism industry offered bullet-proof vehicles, bugging devices and security hardware, so Mardas set up various companies offering these products to royalty and VIPs. King Hussein of Jordan bought a fleet of cars that Mardas had customised. In 1987, Mardas was a managing director of Alcom Ltd, which specialised in electronic communications and security. He later lived back in Greece.