Hervé_Stevenin--Jacques_Yves_Cousteau

Hervé Stevenin (born 25 September 1962 in France) is a European aquanaut leading ESA Neutral Buoyancy Facility Operations and the EVA Training Unit at the European Astronaut Centre (EAC) in Cologne, Germany. He served as an aquanaut on the NASA Extreme Environment Mission Operations 19 (NEEMO 19) crew.
Stevenin has received extensive astronaut training and is the only "non-astronaut" European citizen with spacewalk training experience inside both NASA's Extravehicular Mobility Unit (EMU) and Russian Orlan space suit. Stevenin has more than 20 years' experience in astronaut training and providing operational support for astronauts.