You mean the actress or the character? Brie Larson is playing her.
https://www.imdb.com/title/tt4154664/?ref_=nv_sr_1
Well in all fairness, he did throw the axe into Thanos' energy beam (? whatever you want to call that attack from the Gauntlet) both as a shield and to hit Thanos, aiming probably wasn't high on the list. There's also Thor's hot-headed nature. He's probably more focused on giving Thanos a slow death then anything else at that moment.