Dean DeBlois asked Cate Blanchett to play the role of Valka during the 2011 awards season where How to Train Your Dragon (2010) was being campaigned for Academy Award recognition. "I told her that I had written the part for her in How To Train Your Dragon 2. And she smiled, saying that the (original) movie was "a big hit in her household with her three boys," said DeBlois. "I told her about the character, and I could see it blossoming in her mind." DeBlois wanted Blanchett to play Valka because he knew she could strike the right balance of "rich and commanding," mixed with a sense of "regret and vulnerability" that the part called for.