McNally's stage credits inlcude World Music at the Donmar and The Lady in the Van. On screen he played the role of Gibbs in "Pirates of the Caribbean."
In Boeing-Boeing he joins American actress Rhea Perlman, who recently made her West End debut in the farce as Bernard's long-suffering house maid Bertha.
The four-time Emmy-winning "Cheers" actress first came to the public's attention while playing opposite her husband Danny DeVito in another hit sitcom' "Taxi."
Her theatre credits in the U.S. include The Exonerated, The Tale of the Allergist's Wife and The Last Night of Ballyhoo.
The revival of Marc Camoletti's farce is helmed by Lord of the Rings director Matthew Warchuss and opened at the West End's Comedy Theatre Feb. 15 following previews that began Feb. 3. The madcap plot centers on Paris-based playboy Bernard (Adrian Dunbar), who has three air hostess fiancées.
When his school friend Robert (Neil STuke) arrives, Bernard relishes the chance to show his friend his first-class operation at work. But Bernard hadn't reckoned on a change of airline schedules.
Boeing-Boeing originally opened in London in the mid-sixties and held the world record for the longest-running comedy in the West End, playing over 2,000 performances before transferring to Broadway.
In 1965 John Rich directed the film starring Tony Curtis and Jerry Lewis.
The current cast of Boeing-Boeing also includes Elena Roger, who starred in the title role of the recent West End revival of Evita, as well as Amy Nuttall, Doon Mackichan and Neil Stuke.
For more on Boeing-Boeing, which is booking until Oct. 20, call (0)870 0606637.