Danny Lee "Nitro" Clark (born May 21, 1964) is a former American football professional athlete, television personality, author, actor, and producer.
After American Gladiators, Clark turned to acting, appearing in such motion pictures as Death Becomes Her, with Meryl Streep, Bruce Willis, and Goldie Hawn; and Equilibrium, with Christian Bale.
He has also guest starred in TV series including Ellen, Walker, Texas Ranger, California Dreams, V.I.P., Married... with Children, Who's the Boss?, Saved by the Bell, and The Brothers García.
He has also written several screenplays for various studios, producers, and production companies, including a bio-pic Battle of Harlem, about the first African American police officer in the NYPD.
Clark wrote his memoir Gladiator: A True Story of 'Roids, Rage, and Redemption for Simon and Schuster, published in February 2009 which was purchased by Netflix for the docuseries Muscles & Mayhem, which debuted at #1 on the charts.