Jack Nicklaus, also known as "The Golden Bear", is one of the most successful professional golfers of all time. Nicklaus currently holds the record for the most victories in major championships. After winning two U.S. Amateur Championships in 1959 and 1961, and challenging for the 1960 U.S. Open, Nicklaus turned professional towards the end of 1961. Nicklaus won another Open Championship in 1970. He continued to play the four PGA Tour majors until 2005, when he made his final appearances at The Open Championship and the Masters Tournament.

Nicklaus has also taken part in many off-course activities, including golf course design, book writing, and running his own tournament on the PGA Tour, the Memorial Tournament. His golf course design company is one of the largest in the world. Nicklaus's book writing varies from instructional to autobiographical, and his book Golf My Way is considered one of the best instructional golf books of all time.

Born January 21, 1940, his primary personality traits are represented by the Chinese Zodiac elemental animal sign, the Earth Rabbit. Practical Earth combines with the emotional Rabbit to make this the most calculating Rabbit. His shrewdly determine the best way to secure the material resources he needs to lead a comfortable, refined life. He tends to prefer the home life and usually come off being less social than other Rabbits. Nevertheless, he often wins the respect of those around him and is in general the most respected of the Rabbits.