For Jennifer Semrick and Jim Ballad, playing mother and father to seven children doesn't end once they get off stage.
'I do feel like a second mum sometimes,' says Semrick, who has been playing the role of Maria in The Sound of Music for more than four years, opposite Ballad's Captain Georg von Trapp. '[The children] say, 'Can I call you mother now?'
'[Adults] know the difference between the show and reality,' she says. 'But the children are still growing up, learning and reading on stage.
'They look up to me and Jim. We have a lot to share, from acting to personal issues and homework. We feel like their second parents.'
Semrick says the children help to keep the long-running show fresh: 'I can't work with them if we don't have a really good relationship off the stage,' she says. 'Do I feel like a mother to them? Yes.'
The Sound of Music, one of the world's best known musicals, is coming to the Hong Kong Academy for Performing Arts later this month and is scheduled to run until early November.