Paul Shipton (born 1963) is an award-winning children's author. He was born in Manchester and attended Emmanuel College, Cambridge, and Manchester University. After completing two Masters' degrees (in Classics and Philosophy), he taught English in Istanbul for a year. After returning to the UK, he taught English as a foreign language for several years, and it was around this time that he published his first book, Zargon Zoo (1991). Four years later, he published Bug Muldoon and the Garden of Fear, and relocated with his family to Wisconsin, United States, where he works as a freelance writer and editor. He also writes books for younger readers under the pen name Paul Cooper. He and his wife and two daughters now divide their time between Cambridge, England, and Madison, Wisconsin.

Sylvester Gardenzio Stallone is an American actor, director, producer and screenwriter. One of the biggest box office draws in the world from the '70s to the '90s, international megastar Sylvester Stallone is a global icon. He has played two characters who have become a part of the American cultural lexicon: Rocky Balboa, the boxer who overcame all odds to fight for love and glory, and John Rambo, a courageous soldier who specialized in violent rescue and revenge missions. During the 1980s, he enjoyed phenomenal popularity and was one of the biggest movie stars in the world with the Rocky and Rambo franchises. Stallone's culturally influential films changed pop culture history and he has largely enjoyed a career on the Hollywood A list for over 30 years. He is considered by many (including the mayor of Philadelphia) as the one who made the city of Philadelphia an international tourist attraction with the Rocky Steps. His immense popularity there has led to a statue of his Rocky character being placed permanently near the Philadelphia Museum of Art as a cultural landmark. In August 2007, a statue of Rocky was also erected in the Serbian village of Žitište. Stallone's film Rocky has also been inducted into the National Film Registry as well as having its film props placed in the Smithsonian Museum as a national treasure.