Attwater trained at the Italia Conti Academy of Theatre Arts and went on to star in musicals such as Tonight's the Night, 12 Tenors, 20th Century Boy, and Our Benny.
Sam finished fourth in the 'All Stars' series of Dancing on Ice with his fiance Vicky Ogden after they lost out to Ray Quinn and his partner Maria Filippov but head judge Robin Cousins praised Sam and his skating work.
He then also appeared on "The Alan Titchmarsh Show" performing with some of the cast of Dreamboats and Petticoats, on 13 October 2011.
Between September 2013 and February 2014, Sam has appeared as Adam Pontipee in a nationwide tour of Seven Brides for Seven Brothers.
[11] From January 2020 to February 2020, Sam starred in a West End adaptation of Rags the Musical where he played “Micheal the moustache man” Attwater married Vicky Ogden in 2014, making them the first Dancing on Ice couple to marry.