John Cassidy is a professional comedian, magician, and balloon artist who holds several Guinness World Records® for balloon sculpting speed. His records include Most Balloon Sculptures Completed in One Hour and Most Balloon Sculptures completed in One Minute.

He has appeared numerous times on television as either a stand-up comedian, magician or as a Guinness Book of Records® celebrity. He has been a guest on Late Night with Conan O'Brien, Martha Stewart Living, The Weakest Link, NBC's Today Show, Live With Regis and Kelly, and the Jerry Lewis MDA Telethon four times.

He has also been featured in numerous periodicals including FHM, National Geographic Kids' Magazine, Time, Better Homes and Gardens and The Philadelphia Inquirer.

Though known for his Guinness World Records®, he is sought after for his stage show which he has presented across the US and internationally, performing for family, corporate and collegiate audiences.

He is a frequent performer aboard Disney Cruise Lines and has been honored to perform at the White House five times. Other well know venues have included The Magic Castle in Hollywood, CA, Foxwoods Casino, the Golden Nugget Las Vegas, the Flamingo Las Vegas and The Comedy and Magic Club in Hermosa Beach, CA.