FIRST LOOK: Bulked-up Stephen Graham, 50, shows off his muscular physique as he begins filming his Netflix crime drama Adolescence with Ashley Walters

A bulked-up Stephen Graham was spotted filming for his new crime drama, Adolescence for the first time as he joined Ashley Walters on set on Thursday.

The actor, 50, showed off his muscular physique as he was seen in a tight orange polo shirt and some grubby black working trousers.

Stephen, who is believed to play a plumber in the new production, appeared to be in a crisis during the scenes as he was surrounded by armed police officers, one of which is played by Top Boy star Ashley, 42.

In the first look snaps from the set, armed police could be seen storming Stephen's house and taking his young son into custody.

Stephen, who potentially goes by the Miller Plumber van parked on the drive, was seen following his son outside with his daughter and wife in tow.

A bulked-up Stephen Graham was spotted filming for his new crime drama, Adolescence for the first time as he joined Ashley Walters on set on Thursday

A bulked-up Stephen Graham was spotted filming for his new crime drama, Adolescence for the first time as he joined Ashley Walters on set on Thursday

Stephen, who is believed to play a plumber, appeared to be in a crisis as he was surrounded by armed police officers, one of which is played by Top Boy star Ashley, 42 (pictured)

Stephen, who is believed to play a plumber, appeared to be in a crisis as he was surrounded by armed police officers, one of which is played by Top Boy star Ashley, 42 (pictured)

Tense arguments broke out among the family, and the actor was seen shouting to his son that it would be okay and to not say anything until he got to the station himself.

Stephen can also be heard shouting to the police officers, 'that he's just a boy' and 'Is this all necessary?'.

Very little is known about the plot as Netflix has only said that the show is 'an ambitious crime drama told in a real-time, one-shot style'.

And Plan B Entertainment described it as an 'emotionally searing and innovative series' and 'a truly singular television event.'

Stephen is producing the drama alongside his wife, Hannah Walters, and has co-written it alongside Jack Thorne.

He and Hannah said: 'Matriarch [Productions, which they co-founded] is delighted to announce their involvement on Adolescence

'It's a dream to work side by side creatively with Jack Thorne, a long-time friend. 

'Also, working with Philip Barantini (Boiling Point, Malpractice) is, of course, always an incredible experience - and a marriage that we know works beautifully.'

The actor, 50, looked hunkier than ever as he was seen in a tight orange polo shirt and some grubby black working trousers
He looked worlds away from what we are used to seeing on our screens (pictured 2019)

The actor, 50, looked hunkier than ever as he was seen in a tight orange polo shirt and some grubby black working trousers

In the first look snaps, armed police could be seen storming Stephen's house and taking his young son into custody

In the first look snaps, armed police could be seen storming Stephen's house and taking his young son into custody

Stephen, who potentially goes by the Miller Plumber van parked on the drive, was seen following his son outside with his daughter and wife in tow

Stephen, who potentially goes by the Miller Plumber van parked on the drive, was seen following his son outside with his daughter and wife in tow

Tense arguments broke out among the family, and the actor was seen shouting to his son that it would be okay and to not say anything until he got to the station himself

Tense arguments broke out among the family, and the actor was seen shouting to his son that it would be okay and to not say anything until he got to the station himself

Stephen can also be heard shouting to the police officers, 'that he's just a boy' and 'Is this all necessary?'

Stephen can also be heard shouting to the police officers, 'that he's just a boy' and 'Is this all necessary?'

Very little is known about the plot as Netflix has only said that the show is 'an ambitious crime drama told in a real-time, one-shot style'

Very little is known about the plot as Netflix has only said that the show is 'an ambitious crime drama told in a real-time, one-shot style'

Stephen is producing the drama alongside his wife, Hannah Walters, and has co-written it alongside Jack Thorne

Stephen is producing the drama alongside his wife, Hannah Walters, and has co-written it alongside Jack Thorne

Adolescence will be available to stream in 2025 on Netflix

Adolescence will be available to stream in 2025 on Netflix

Mark Herbert, Warp Films CEO, added: 'The collaboration of talents behind Adolescence is exceptional.

'With Stephen Graham, Philip Barantini and Jack Thorne leading the charge, expect an ambitious one-shot crime drama like never before.'

The official trailer will be released at some point next year, usually around one month before the series premieres.

Adolescence will be available to stream in 2025 on Netflix.