We’ve been keeping this one a secret but we are so pleased the news is finally out there. Autistic actor Talia Grant is joining the cast of Hollyoaks to play autistic character Brooke Hathaway, who will appear in the village in June. They say they are looking forward to representing "something that people are unaware of".

Talia is the child of TV stars Carrie and David Grant, who are parent campaigners for the National Autistic Society and who served as vocal coaches on Pop Idol and Fame Academy. Lime Pictures put out an open casting call to find an actor to play the part and worked with the National Autistic Society in researching the character and to help advise with the auditioning and casting process.

They said: "I am so excited to be joining Hollyoaks. I have met some of the cast and being on set was fun and everyone was super-nice and made me feel welcome.

"For a long while there has been no representation on screen of autistic women, especially autistic women of colour, so I am really looking forward to developing the character of Brooke and representing something that perhaps people are unaware of."

Bryan Kirkwood, executive producer of the soap, said: "We are delighted that the search for Brooke uncovered brilliant new talent Talia, whose auditions were joyful.

"She will bring a new, different voice into the show and we are very excited about her arrival into the Osborne family where she will bring a secret from the past.

"Brooke is a strong, independent character who has a solid handle on what it means to be an autistic teenage girl and we have worked with Talia on developing their character.

"The best way to describe Brooke's autism is to say that she experiences the world a hundred times more intensely than other people. Every light shines brighter, every smell is stronger - and every word she takes to heart that little bit more.

"Happy times like going out for ice cream with Nancy become cherished experiences for Brooke that she will never stop talking about ... but a rude, snappy remark from a teacher will cut Brooke to the core."

Jane Harris, Director of External Affairs and Social Change at the National Autistic Society, said: "We're absolutely delighted that Hollyoaks is introducing an autistic character into the show and that an autistic actor is playing the part.

"One in 100 people in the UK are autistic. Hollyoaks will help more of the public understand the challenges that autistic people face in their everyday lives.

"Most people know someone who is autistic, whether it's a friend, classmate, colleague or family member. So it's really encouraging to see more TV script writers representing autistic characters in their work."