 Thomas was born in Dordrecht but was raised in Feltham, London where he attended St Laurence's RC Primary, Feltham and St Edmunds RC Primary, Whitton.He moved from London aged 12 to St Annes-on-Sea near Blackpool in Lancashire, England where he attended Our Lady Star of the Sea Primary, St Anne's and St Bede's RC High School, Lytham.After leaving school Thomas worked as a travel agent before moving into professional boxing and subsidising his wage working as a door supervisor in Blackpool.