Latham Gaines (born February 3, 1964) is an American composer, actor, artist and inventor. He is the son of the novelist Charles Gaines and artist Patricia Ellisor Gaines.

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As 1/2 of the duo GAINES, Gaines and brother Shelby Gaines create sound sculpture from 'found' materials. Their pieces have been featured in several NY Art Shows and their live performance of their original score in Ethan Hawke’s revival of Sam Shepard’s A Lie of the Mind earned them a Drama Desk Award nomination in 2010. They collaborated with Hawke again in 2013, creating the sound doors that provided the soundtrack for "Clive" - Jonathan Marc Sherman's latter-day variation on Brecht's "Baal".

Most recently, Latham and his brother built five new instruments from found objects and used them to create the original score for the 2019 film The Kid from Mimran Schur Pictures, directed by Vincent D'Onofrio.

In 2008, Gaines and his partner, Laura Interval, established "Opi and Me, LLC", a product development company specializing in licensing toys and game concepts to companies worldwide. They have had dozens of products produced and on the shelves including Mattel's SpinShotz, Canal's Power Dough, and Schmidt Spiele's Ligretto Twist.^[1][2]

Gaines moved to New Zealand in 1995. Some memorable roles include Mesogog / Dr. Anton Mercer in Power Rangers Dino Thunder and Bill Burke in Bridge To Terabithia. Gaines also starred in the TVNZ series The Cult, earning a nomination for "Best Performance by an Actor" at the Qantas Film and Television Awards for his portrayal of "Edward North".