Dashiell John Upton is the firstborn of Cate Blanchett and Andrew Upton. He got his name in honor of Dashiell Hammett, an author of The Maltese Falcon novel.
Dashiell often calls himself an experiment as being the firstborn, he taught his parents how to bring up a child. Cate revealed that they made many mistakes with him but they learned from them.
Moreover, Blanchett frequently asks Dashiell and his siblings for career advice before she accepts a new role. For instance, the young man doubted if she should play in Clock in Its Walls but finally told Cate to portray Florence Zimmerman.
A curious fact: in 2018, Dashiell attended the Venice Film Festival with his mother.