William J. Humphrey's 4 syllables (2 + 2) hit the Hollywood sweet spot.
William's 2 beats vs. J. Humphrey's 2 create a natural cinematic snap.
William J. Humphrey's softer consonants cost it screen presence.
William J. Humphrey misses the alliteration hook that makes names stick.
William (7 letters) and J. Humphrey (9) are balanced in length — clean on any poster or marquee.
William J. Humphrey's uncommon phonemes make it harder for audiences to latch on.
William J. Humphrey has decent vowel richness, but stronger A and O sounds would lift it.