Alastair was born in March 1981 in Preston, Lancashire, the youngest of three boys. He entered the world of dance at a young age when he insisted on following his best childhood mate along to Saturday morning ballet classes.

At the age of 11 he was accepted into The Royal Ballet where he attended White Lodge in Richmond. He was assessed out after a year, but remains proud to have made it in at this early stage, as it proved wrong people who had doubted his ability as a dancer. He then went to on to train at Arts Ed School in Tring until he was 18.

After graduating ,he joined Adventures in Motion Pictures where he performed in Matthew Bourne's Swan Lake on a European, UK and West End tour. He has also worked with the Scottish Ballet, Adonais, The Curve Foundation and The Royal Opera House. He travelled to Japan to work with K Ballet, created by Tetsuya Kumakawa. His Classical repertory includes Don Quixote, Nutcracker, The Prodigal Son, Coppélia, and Façade. Most recently, he finished in the UK tour of Cabaret with Wayne Sleep, which he appeared in for a year and a half.