Broadchurch actor Andrew Buchan is leaving Downton Abbeys wife Amy

Broadchurch actor Andrew Buchan is leaving Downton Abbey’s wife Amy Nuttall

Broadchurch actor Andrew Buchan ‘leaves Downton Abbey’s wife Amy Nuttall and moves in with new co-star Leila Farzad’ after meeting on the set of BBC drama ‘Better’

Broadchurch star Andrew Buchan has left actress Amy Nuttall after forging a new relationship with his co-star in brand new drama.

The actor, best known for his role as Mark Latimer in the hugely popular ITV series, married Downton Abbey star Nuttall in 2012 and the couple welcomed a son in 2015.

But he is said to have left the family home and moved in with Leila Farzad after meeting the glamorous actress while working on BBC series Better, The Sun reports.

A source told the outlet: “It was a huge shock. Amy is heartbroken.’

Buchan reportedly told Nuttall that their marriage would end before Christmas, leaving the actress devastated and her friends in shock.

Overall?  Broadchurch star Andrew Buchan has left actress Amy Nuttall after forging a new relationship with his co-star in brand new drama

Overall? Broadchurch star Andrew Buchan has left actress Amy Nuttall after forging a new relationship with his co-star in brand new drama

Co-stars: He is said to have left the family home and moved in with Leila Farzad after meeting the glamorous actress while working on the BBC series Better (pictured on the show)

Co-stars: He is said to have left the family home and moved in with Leila Farzad after meeting the glamorous actress while working on the BBC series Better (pictured on the show)

Old times: Nuttall rose to fame after joining the ITV soap Emmerdale in 2000 aged 18;  She played Chloe Atkinson for eight years before leaving to pursue a music career

Old times: Nuttall rose to fame after joining the ITV soap Emmerdale in 2000 aged 18; She played Chloe Atkinson for eight years before leaving to pursue a music career

The source added: “Having Andrew walk away from his family has been a huge shock to all of us – and Amy is heartbroken. Everyone who knows her thought they would be together forever.

“But he packed his bags and left with his new co-star. Whatever happened, it seems it was enough for him to reevaluate his whole life and tear up their marriage.

“No one is sure of the exact details, but Andrew has clearly turned his head quite dramatically.”

Buchan plays a well-connected criminal alongside Farzad’s corrupt cop in new crime drama ‘Better’, which aired on BBC One in February.

London-born and Oxford-educated Farzad has previously landed roles in Law & Order: UK, Man Down, This Time With Alan Partridge and I Hate Suzie – a role that earned her a BAFTA-TV – brought in a nomination.

Formerly: The actor is best known for his role as Mark Latimer in the hugely popular ITV series Broadchurch (pictured)

Formerly: The actor is best known for his role as Mark Latimer in the hugely popular ITV series Broadchurch (pictured)

Stunned: Friends of the couple are said to be in shock after he left the family home and moved in with his Oxford-educated co-star

Stunned: Friends of the couple are said to be in shock after he left the family home and moved in with his Oxford-educated co-star

Glamorous: London-born Farzad has previously landed roles in Law & Order: UK, Man Down, This Time With Alan Partridge and I Hate Suzie - a role that earned her a BAFTA TV nomination

Glamorous: London-born Farzad has previously landed roles in Law & Order: UK, Man Down, This Time With Alan Partridge and I Hate Suzie – a role that earned her a BAFTA TV nomination

Fellow actress Nuttall rose to fame after joining the ITV soap Emmerdale in 2000 aged 18; She played Chloe Atkinson for eight years before leaving the show to pursue a music career.

While on the show, she dated co-star Ben Freeman for more than four years before the couple split over claims he cheated on her.

More recently she played Ethel Parks in the BBC period drama Downton Abbey.

Ironically, the character loses her job at Downton’s sprawling estate after having a torrid affair with a duty officer.

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Leading role: She is currently playing a key role in the latest drama to be delivered by BBC One

Leading role: She is currently playing a key role in the latest drama to be delivered by BBC One