Possible Clues:

• The Thunderer is nevertheless right
• Old satellite-launching rocket
• "The Avengers" character
• Wearer of iron gloves and a power-belt
• Director of Hammer film?
• Comic book superhero
• "The Avengers" hero
• 'The Avengers' hero
• Two-time title role for Chris Hemsworth
• Loki's brother, in movies