Olivier Gendebien (12 January 1924, Brussels, Belgium – 2 October 1998, Les Baux de Provence, Bouches-du-Rhône, France) was a war hero and race car driver. He has been cited as "one of the greatest sportscar racers of all time".

Born into a wealthy family, an heir to the industrial holdings of the Solvay family, Olivier Gendebien studied engineering at university. When World War II erupted and the Nazis occupied Belgium, he joined the Belgian resistance movement. Fluent in the English language, he served as the liaison with the British agents being parachuted into Belgium. Later in the War he went to England, serving with the British army as part of a Belgian paratrooper unit. When the war ended Gendebien switched to the study of agriculture, spending several years working in forestry in the Belgian Congo where he met a rally driver named Charles Fraikin.

On his return to Belgium, Gendebien entered a Veritas sports car in the 1955 Grand Prix des Frontières at Chimay. However, following this race he switched his focus, and teamed up with Fraikin to compete in rally racing using a Jaguar sports car. Together with Pierre Stasse, Gendebien won the sixth running of the Tulip Rally in Zandvoort in April 1954. Their car was an Alfa Romeo 1900 TI. The Gendebien and Fraiken partnership gained the nickname "the eternal bridesmaids", owing to their number of second-place finishes, but after two previous attempts they triumphed in the Liège-Rome-Liège Rally and the Coppa d'Oro delle Dolomiti in 1955, driving a Mercedes-Benz 300SL.

Alfonso Antonio Vicente Eduardo Angel Blas Francisco de Borja Cabeza de Vaca y Leighton, Marquis of Portago, best known as Alfonso de Portago (born in London, October 11, 1928 – died near Guidizzolo, Mantua, Italy, May 12, 1957) was a racing driver from Spain.

Portago was 6' (1.83 m) tall and weighed 170 pounds (77 kg). He was educated in France. He became articulate in four languages. Portago was heir to one of the most respected titles in Spain and a millionaire. Among his ancestors were an explorer, a Governor of Madrid, and a war hero. His Spanish father was Antonio Cabeza de Vaca. He died during half time at a polo match at a young age. His mother was named Olga Leighton and was Irish. She also had a daughter named Sol. Olga's first husband, Francis John Mackey, was more than 40 years older than she was. He shot himself while terminally ill and left Olga an enormous fortune made as founder of Household Financial.

In 1949, when he was only twenty, de Portago married American former showgirl Carroll McDaniel (by whom he had two children). McDaniel was several years older than Portago and they barely knew each other. One of his daughters (born 1949 or 1950) is photographer Andrea Portago, who was on the June 1977 cover of Andy Warhol's Interview magazine. His son Anthony de Portago, a stockbroker and private investor interested in dance and acting was born around 1954. Supposedly, Carroll and Alfonso were in the process of getting a divorce so he could legitimize his invalid Mexican marriage to 1940s/1950s supermodel Dorian Leigh (who had already aborted their first baby in 1954 and then gave birth to their son Kim on September 27, 1955). Dorian was eleven years his senior. However, de Portago was also dating actress Linda Christian, actor Tyrone Power's ex-wife.