Veteran Ian McKellen, who raised more than £1m for theatre charities and arts groups, also honoured
The West End musical Frozen, the story of an ice queen and her fearless sister that captivated a generation, has dominated the only major theatre awards decided by public vote.
But the lavish production lost out in the category of best new musical to Back to the Future: The Musical, an adaptation of the hit 1985 film about a young man forced to set up his parents after being accidentally sent 30 years back in time.