Alexi, Ed, Zhai...

EVAs (i.e. spacewalks):

Alexi Leonov - March 18th, 1965 (Voskhod 2)
Edward H. White - June 3rd, 1965 (Gemini 4)
Zhai Zhigang - September 27th, 2008 (Shenzhou 7)

Chinese astronaut completes nation's first space walk
Of great significance