Bradley Whitford, star of US drama The West Wing, is to appear in a new BBC thriller centred around climate change.
Bradley Whitford basked in Emmy awards glory in 2001
Burn Up, which will be screened next year on BBC Two, will also feature Spooks actor Rupert Penry-Jones and Hollywood star Neve Campbell.
Filming begins this month in Calgary, before moving to London next year.
Whitford has been seen most recently playing a producer on a fictional entertainment show in Aaron Sorkin's series Studio 60 on the Sunset Strip.
He also won an Emmy in 2001 for his performance in The West Wing, playing Josh Lyman, the deputy chief of staff at a fictional White House.
Burn Up is promoted as charting the clashes between a politician, a green activist and an oil industrialist as they battle for economic success and environmental responsibility.
The trio collide as they prepare to attend a summit on climate change.
Rupert Penry-Jones currently plays Adam Carter in Spooks
Lucy Richer, a commissioning editor for drama at the BBC, said the series would be "wholly of this unique moment in time" and called it an "epic proposition".
Stephen Garrett of producers Kudos Film and Television hailed Burn Up as "a potent cocktail of fiction and fact that we hope will enlighten as much as it will entertain".
Kudos is responsible for making Spooks and also produced the hit serial Life on Mars.