Full name John Jeffrey Clarke
Born March 30, 1954, Renmark, South Australia
Current age 62 years 121 days
A lawyer by profession, Jack Clarke joined the Cricket Australia board in 1999 and was the board chairman from October 2008 until 2011. He presided at a time when Australia struggled on the field and he was in charge when the Argus report into Australia's on-field performance was commissioned, as well as the Crawford-Carter report into Cricket Australia's governance.
Also: the fastest Indian to 50 wickets, and Yasir Shah's unwanted "double-hundred"