An Intergalactic Friendship: Captain Kirk on Mr. Spock. Leonard Nimoy became famous for his role as Mr. Spock in the series Star Trek. With the ever-logical Vulcan, he created a character that has shaped pop culture like few others to this day. On set, Nimoy met William Shatner, a.k.a. Captain Kirk, with whom he shared a close friendship for 50 years. Together, the two men experienced highs and lows, both professionally and personally. Through numerous anecdotes, William Shatner now recounts the fascinating life of his best friend and reveals the man behind the unemotional Vulcan: the sensitive poet, photographer, devout Jew, and recovering alcoholic. A touching biography and the story of a great friendship - not just for Star Trek fans.