Avengers-skuespilleren Jeremy Renner, som spiller Hawkeye, kunne også ha spilt en annen tegneseriefigur: Hellboy. Dette avslørte han via Life is Short-podcasten og forklarte hvorfor han til slutt bestemte seg for å takke nei til rollen som den ildrøde pannekakeelskeren i Gullermo del Toros regi:
"I was just reading the script and [thinking] like, 'I don't get this...' I just couldn't connect to it," he said. "I said, 'I can't find a way in [to this character], I don't know what I'd be doing,' so I had to say no."
Han fortalte også at han ikke angrer på beslutningen, selv om det handlet om mye penger:
em>"There's zero regrets, zero. Most of the time it's like, 'Oh, I'm glad I didn't do it,' and it made sense to me. Not just Hellboy or whatever it was, and I'm not saying that it's a good or bad movie, it's not about that... I just wouldn't have fit there"</em>