Possible Clues:

• Rebellious Roman slave
• Howard Fast title
• Revolting slave
• Gladiator played by Kirk Douglas
• Thracian gladiator
• Title gladiator played by Kirk Douglas
• Revolting type in villain's part - a customary piece of fast casting
• Small role, actor's second in Australian film
• Place that was austere and cold given to American slave
• Slave's role in South Africa, originally Central America