Rhys Mulligan
Ron Weasley (4-7)
for Ron Weasley (4-7) in Harry Potter: The Full-Cast Audio Editions
Suggested by kevincarney
Source: https://www.harrypotter.com/news/every-single-voice-you-hear-in-harry-potter-the-full-cast-audio-editions
All seven "Harry Potter" books performed by a voice cast of over 200.
