Robert Broderick's 5 syllables (2 + 3) hit the Hollywood sweet spot.
Robert's 2 beats vs. Broderick's 3 create a natural cinematic snap.
Robert Broderick blends hard and soft consonants — decent presence, some softness.
Robert Broderick misses the alliteration hook that makes names stick.
Robert (6 letters) and Broderick (9) have a slight length mismatch, but it reads fine on screen.
Robert Broderick has mostly familiar phonemes with a few tricky patterns.
Robert Broderick has decent vowel richness, but stronger A and O sounds would lift it.