The performer, who is famous for his West End roles as well as parts in Doctor Who and Torchwood, will be given the honour of Doctor of Drama by the Royal Scottish Academy of Music and Drama this summer.
John, 44, was born in Mount Vernon, but later moved to America with his family.
He returned to Glasgow last Christmas to star in the SECC's panto, a role he will reprise this year in Robinson Crusoe.
Also recognised by the RSAMD will be the man behind the Evening Times-backed A Play, A Pie and A Pint at Oran Mor. David MacLennan will be given the same honour.
The actor, writer and producer was one of the founders of the 7:84 Scotland Theatre in 1973, and went on to become a successful playwright.
RSAMD graduate, renowned Scottish singer Moira Anderson, 72, will also be made a Doctor of Music.
She was a teacher until being offered her own BBC radio programme Can't Help Singing.
In 1968 she got her own TV show Moira Anderson Sings, and went on to perform at the London Palladium and to win popularity in Canada, America, Australia and New Zealand.
Another former student, soprano singer Judith Howarth will be honoured with a Doctor of Music.
She joined The Royal Opera aged just 21 and performed in numerous operas as well as alongside greats Luciano Pavarotti and Plàcido Domingo.
She has even sung at Buckingham Palace.
The ceremonies will be at the RSAMD on Tuesday, July 5.