Bruce Greenwood and David Walliams will join Steve Carell, Zach Galifianakis and Paul Rudd in “Dinner for Schmucks,” the Jay Roach-directed comedy for Paramount, DreamWorks and Spyglass.

Walliams plays a Swiss banker that Tim Conrad (Rudd) and his Fender Financial cohorts hope to impress as a potential investor. Greenwood plays the role of the billionaire, Fender.

Greenwood last completed the Bruce Beresford-directed “Mao’s Last Dancer,” which bowed at Toronto.

Walliams, best known as half of the team behind “Little Britain” and the HBO transfer “Little Britain USA,” can next be seen playing the title character in “Greville White,” the BBC TV drama that bows Nov. 10 on HBO Signature and on demand.