Chris Hemsworth's 3 syllables (1 + 2) hit the Hollywood sweet spot.
Chris's 1 beat vs. Hemsworth's 2 create a natural cinematic snap.
Chris Hemsworth's softer consonants cost it screen presence.
Chris Hemsworth misses the alliteration hook that makes names stick.
Chris (5 letters) and Hemsworth (9) have a slight length mismatch, but it reads fine on screen.
Chris Hemsworth has mostly familiar phonemes with a few tricky patterns.
Chris Hemsworth has decent vowel richness, but stronger A and O sounds would lift it.