Kevin Costner's 4 syllables (2 + 2) hit the Hollywood sweet spot.
Kevin's 2 beats vs. Costner's 2 create a natural cinematic snap.
Kevin Costner's softer consonants cost it screen presence.
Kevin and Costner share a similar first sound — a subtle memorability boost.
Kevin (5 letters) and Costner (7) are balanced in length — clean on any poster or marquee.
Kevin Costner has mostly familiar phonemes with a few tricky patterns.
Kevin Costner has decent vowel richness, but stronger A and O sounds would lift it.