Seems like nothing is stopping Robet Pattinson from branching out from Twilight fame express. A Robert Pattinson guesting on the final episode of Entourage is reportedly on the works.

Pattinson is rumored to appear in the series seven finale of the Hollywood-set series as a difficult client of fictional film agent Ari Gold, played by Jeremy Piven. Reports say that 24-year old Robert had already filmed scenes for the HBO hit show.

Recently, Pattinson revealed his workaholic side, or is he just tasting what is out there for him once the Twilight series completes filming? The vampire phenomena, started off by the Twilight series in 2008, is expected to last for a couple more years, but Pattinson, who fleshes out vampire Edward Cullen on-screen, seems eager to branch out.

"I just want to work as much as I am now. I like working all the time because I spent so many years before Twilight just doing stuff for two or three months of the year. The rest of the time I'd do nothing, or I'd just have tiny little jobs," he explained.

Aside from Robert Pattinson, other high-profile celebrities are also set to appear in Entourage. Rapper Eminem and Christina Aguilera had confirmed that they will be make cameo appearances in the show's final episode.