The British comedian will appear in several episodes of the cult comedy's fourth season, TVLine reports.
Lucas is best known for his roles on UK shows Shooting Stars, Little Britain and Come Fly with Me. His role on Community is currently unknown.
The 38-year-old's past US TV credits include HBO's Little Britain USA and Comedy Central fantasy spoof Kröd Mändoon and the Flaming Sword of Fire.
NBC boss Robert Greenblatt recently claimed that Community will be "refreshed" in season four, following the departure of show creator and original showrunner Dan Harmon.
"I think the fans of Community are going to get the same show that they have loved from the beginning," he promised. "Sometimes you want to freshen the show. We just decided it was time to do that on Community. No disrespect to anyone."
Community returns to NBC for a fourth season on Friday, October 19. In the UK, the series airs on Sony Entertainment Television.
> Community Joel McHale Q&A: 'I'm excited to meet Jeff's father'
> Community star Alison Brie 'wants time-travel episode'
Watch highlights from the third season of Community below: