Other theatre credits include: Shrek the Musical (Theatre Royal, Drury Lane), Women on the Verge of a Nervous Breakdown (Playhouse, West End), Laughter in the Rain – The Neil Sedaka Story (UK No.1 Tour), Rock Paper Scissors (Sheffield Theatres), The Merchant of Venice (Stafford Shakespeare Festival), Strangers on a Train (Gielgud Theatre), The Go-Between (Trafalgar Studios), What Every Woman Knows (Manchester Royal Exchange), 

Television credits include: Lee Banks in Line of Duty Season 5&6Silent WitnessThe Machines That Built The World, CasualtyHollyoaksCoronation StreetThe Marchioness Disaster and Basil Brush.

Films include: The Testing Point (Project Wilde Ltd), Run (Rashomon Films) Mad To Be Normal (Gizmo Films), The Innocent (White Jacket Productions), Make Aliens Dance (Annex Films), and Two Sides (Mixing Networks Productions - nominated for Best Actor in the 2019 International Film Festival).

Alastair also works regularly as a solo singer and voice over artist and has recorded several episodes of Silver Street – a radio soap opera for the BBC as well as the recurring role of Ethan Miller in animation series, MINT for Apple TV+.