Complex sentence: Darro's wiry, athletic frame and relatively short stature often typecast him as jockeys; he played crooked riders in "Charlie Chan at the Race Track" and "A Day at the Races".
Split into simpler sentences: Darro's wiry, athletic frame and relatively short stature often typecast him as jockeys. He played crooked riders in "Charlie Chan at the Race Track" and "A Day at the Races".