Seth Gabriel Marton (born 4 January 1983), who performs by his stage name Seth Sentry, is an Australian hip hop recording artist. He has released one extended play and two studio albums. At the ARIA Music Awards of 2015 he won the ARIA Award for Best Urban Album for his second album, Strange New Past. Sentry's touring schedule has involved headline shows around Australia, as well as appearances at numerous festivals such as Breath of Life, Fat As Butter, Come Together, Sprung Festival, Big Day Out (Melbourne), Homebake, Hyperfest, Groovin the Moo and Triple J's One Night Stand.