Chris Hemsworth played Thor across nearly a decade, and the character was widely considered the least interesting Avenger until Taika Waititi discovered he could be funny.
Ragnarok is the turning point and Hemsworth is very good in it, playing enormous confidence undercut constantly, which is a harder register than the earlier solemn version.
Rush is the dramatic performance worth seeking, as James Hunt, and Extraction gave him a serious action vehicle with a long single-take sequence.
He is Australian, came from a soap opera, and has been candid that the physical maintenance the role required was punishing over ten years.