'Prison Break' star Wentworth Miller reveals 'gift' of adult autism diagnosis

Watch: Wentworth Miller discusses his autism diagnosis

Wentworth Miller has revealed he was formally diagnosed with autism last year – and called the diagnosis a "gift".

The Prison Break star said it came as a "shock but not a surprise", adding that the diagnosis had been a long, flawed process that he felt needed updating.

Miller, 49, revealed in a lengthy Instagram post: "Like everyone, life in quarantine took things from me. But in the quiet/isolation, I found unexpected gifts.

BEVERLY HILLS, CA - MARCH 29:  Actor Wentworth Miller attends the
Wentworth Miller has said his adult autism diagnosis is a gift. (Getty Images)

"This fall marks one year since I received my informal autism diagnosis. Preceded by a self-diagnosis. Followed by a formal diagnosis.

"It was a long, flawed process in need of updating. IMO [In my opinion]. I'm a middle-aged man. Not a five-year-old. I recognise access to a diagnosis is a privilege many do not enjoy.

Read more: Wentworth Miller announces he is 'officially' done with Prison Break

"Let's just say it was a shock. But not a surprise."

The Legends Of Tomorrow actor said he was not ready to become a public spokesman about autism.

'Prison Break'. (Credit: Fox)
Wentworth Miller rose to fame as Michael Scofield in the TV drama Prison Break. (Fox)

He said: "I don't want to run the risk of suddenly being a loud, ill-informed voice in the room. The #autistic community (this I do know) has historically been talked over. Spoken for. I don't wish to do additional harm. Only to raise my hand, say, 'I am here.'"

But Miller said he needed to re-examine the past five decades of his life "through a new lens", adding, "I get – got – immediately being autistic is central to who I am. To everything I've achieved/articulated."

And the actor – who has previously spoken about battling depression since childhood – thanked those who had been supportive of him in the past.

He said: "I also want to say to the many people who consciously or unconsciously gave me that extra bit of grace and space over the years, allowed me to move through the world in a way that made sense to me whether or not it made sense to them... thank you."

He added: "And to those who made a different choice... well. People will reveal themselves."

NEW YORK, NY - JANUARY 21:  Wentworth Miller visits
Wentworth Miller said the diagnosis had been a long, slow process. (Getty Images for Extra)

Autism is a developmental disorder which can affect social interaction and communication to varying degrees.

Read more: Christine and Paddy McGuinness to feature in BBC autism documentary

Miller rose to fame playing Michael Scofield in hit Fox drama Prison Break from 2005 to 2009.

The actor was born in Oxfordshire to American parents and grew up in Brooklyn. He holds duel UK and US citizenship.

He came out as gay in 2013 having previously publicly denied his sexuality.

Miller later revealed he had attempted suicide multiple times a teenager.

If you are in need of emotional support you can call the Samaritans 24-hour helpline on 116 123, email, visit a Samaritans branch in person or go to the Samaritans website,

Watch: Wentworth Miller done with 'straight characters'