‘Star Wars’ star Domhnall Gleeson has been tapped to join the limited series from HBO on the Watergate scandal ‘The White House Plumbers.’

Gleeson is said to be taking on the role of a key character, John Dean, the brilliant, ambitious and youthful White House Counsel that ultimately orchestrates the illegal cover-up that brought down Nixon and his administration. He joins the previously announced Woody Harrelson and Justin Theroux.

The five-part series tells the story of how President Richard Nixon’s own political saboteurs and Watergate masterminds, E. Howard Hunt (Harrelson) and G. Gordon Liddy (Theroux), accidentally toppled the presidency they were zealously trying to protect.

Also in news – Mark Rylance & Simon Pegg to star in Channel 4 series ‘The Undeclared War’

Partly based on the book ‘Integrity’ by Egil “Bud” Krogh and Matthew Krogh and public records, both Harrelson and Theroux will executive produce.

‘Veep’ writers and executive producers Alex Gregory and Peter Huyck created the series and will also executive produce. ‘Veep’ showrunner David Mandel will executive produce and direct all five episodes.

Gleeson can currently be seen in the Channel 4 comedy ‘Frank of Ireland’ which he co-wrote with his brother Brian Gleeson.