John W. "Jack" Ryan - Father of the Mattel V-RROOM! Bicycle
John W. "Jack" Ryan (12 December 1926 – 13 August 1991), was an American designer noted for creating the popular image of the Barbie doll and being the sixth husband of Zsa Zsa Gabor. He was also listed on the Mattel patents as the designer of the Mattel V-RROOM! bike, V-RROOM! Engines and X-15 V-RROOM! Tricycle.