Possible Clues:

• 'The Avengers' hero
• Two-time title role for Chris Hemsworth
• Loki's brother, in movies
• One of the superheroes in 2012's 'The Avengers'
• the Thunderer's authoritative section
• Comic book superhero
• God who named a weekday
• Norse bolt maker
• Writer striking gold is seen as a god
• Thunderous one?