William Shatner is the actor that played James Tiberius Kirk in the science fiction television series Star Trek. You can imagine how famous he is from these Twitter answers:
.@WilliamShatner Everything within normal parameters, Capt'n. Robotic probe @ESA_Rosetta arrives at comet #67P today! http://t.co/f7nuOjMVuh
— ESA (@esa) 6. August 2014@WilliamShatner Good day, Captain. #ISS is in standard orbit and Commander Swanson has the conn. Hope you’re having a great weekend!
— NASA (@NASA) 2. August 2014