
Randy Thom
David Randall Thom (born August 21, 1951) is an American sound designer and the director of sound design at Skywalker Sound. Thom started his film career by phone calls to Walter Murch, who invited him to visit a re-mix of American Graffiti. Thom introduced himself to Murch, Ben Burtt, and Mark Berger, and he said he had been working for a radio station in Berkeley and wanted to work in film sound. Description above from the Wikipedia article Randy Thom, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Filmography

How to Train Your Dragon
as Toothless (voice) (uncredited)
How to Train Your Dragon
as Toothless (voice) (uncredited)

The Wild Robot
as RECOs (voice)
The Wild Robot
as RECOs (voice)

Ruby Gillman, Teenage Kraken
as Confetti Cannon (voice)
Ruby Gillman, Teenage Kraken
as Confetti Cannon (voice)

Spies in Disguise
as Various Voices / Pigeon Voice (voice)
Spies in Disguise
as Various Voices / Pigeon Voice (voice)

Making Waves: The Art of Cinematic Sound
as Self
Making Waves: The Art of Cinematic Sound
as Self

How to Train Your Dragon: The Hidden World
as Toothless (voice)
How to Train Your Dragon: The Hidden World
as Toothless (voice)

Ice Age: Collision Course
as Hyrax Minister (voice)
Ice Age: Collision Course
as Hyrax Minister (voice)

The Peanuts Movie
as Various Voices (voice)
The Peanuts Movie
as Various Voices (voice)

How to Train Your Dragon 2
as Toothless (voice)
How to Train Your Dragon 2
as Toothless (voice)

Rio 2
as Logging Foreman (voice)
Rio 2
as Logging Foreman (voice)

Epic
as Additional Voices (voice)
Epic
as Additional Voices (voice)

The Croods
as Sandy (voice)
The Croods
as Sandy (voice)

Ice Age: Continental Drift
as Additonal Voices (voice)
Ice Age: Continental Drift
as Additonal Voices (voice)

Flight
as Radio Stock Market Reporter (voice)
Flight
as Radio Stock Market Reporter (voice)

How to Train Your Dragon
as Toothless (voice) (uncredited)
How to Train Your Dragon
as Toothless (voice) (uncredited)

Breaking Barriers: The Sound of Hitchcock
as Self
Breaking Barriers: The Sound of Hitchcock
as Self

Pure Cinema: Through the Eyes of Hitchcock
as Self
Pure Cinema: Through the Eyes of Hitchcock
as Self

More Making of 'The Incredibles'
as Self
More Making of 'The Incredibles'
as Self

Love, Death, Elvis & Oz: The Making of Wild at Heart
Love, Death, Elvis & Oz: The Making of Wild at Heart