Sergio Ciani, best known as Alan Steel (born 7 September 1935 - 5 September 2015), was an Italian bodybuilder and actor.

Born in Rome, Ciani started his career as a stuntman, then he became the body double ofSteve Reeves in Hercules Unchained and in The Giant of Marathon, in which he also played a minor role. From early sixties he adopted the stage name Alan Steel and starred the leading roles in a number of peplum films of good commercial success. With the decline of the genre Steel thinned out his appearances, until his retirement at the end of the seventies.

Ciani died in his sleep at his house in Ostia, aged 80.

Selected filmography

• The Giant of Marathon (1959)
• Samson (1961)
• The Old Testament (1962)
• The Fury of Hercules (1962)
• Samson and the Slave Queen (1963)
• The Rebel Gladiators (1963)
• Hercules Against the Moon Men (1964)
• Hercules and the Black Pirates (1964)
• Hercules Against Rome (1964)
• 3 Avengers (1964)
• Hercules and the Treasure of the Incas (1964)
• Samson and His Mighty Challenge (1965)
• The Little Cowboy (1973)