Topher Grace’s backstage musical comedy One Shot is getting a Broadway vet in Taye Diggs. The singer-actor has joined the cast of the indie film, about a failed star turned stage manager (Grace) who must wrangle the eccentric cast and crew of a new production to save the show’s opening night. Isaac Rentz is directing from a script by Gerry De Leon and Greg Lisi; Grace, who’s currently in theaters in Christopher Nolan’s Interstellar, is also producing.

Diggs will play Malcolm, a flamboyant member of the production. Diggs of course got his start originating the character of Benny in 1996’s Tony-winning Rent, a role he reprised in 2005 when the musical was adapted into a film by Sony and Chris Columbus. By then he was well into a film and TV career with How Stella Got Her Groove Back, The Wood, The Best Man, and a run on Ally McBeal under his belt. He’s now coming off Private Practice, Murder in the First, The Good Wife, and last year’s hit sequel The Best Man Holiday, which has another installment in the works for 2016.

Daniel Posada and Jason Tamasco are also producing One Shot for Mexico-based Dark Factory Entertainment (100 Cries, Reversal) with Alex Garcia of AG Studio (Demian Bichir’s Refugio, Paul Schrader’s The Jesuit, Jonas Cuaron’s Forsaken). Filming is set to begin next month in Mexico City. Brillstein Entertainment Partners’ Jai Khanna packaged the film, which is being financed by Dark Factory and AG Studios. Annapurna is repping international rights and ICM Partners will co-rep North American rights with Brillstein.

Grace next appears in Truth opposite Robert Redford and Cate Blanchett, American Ultra opposite Kristen Stewart and Jesse Eisenberg, and the Jason Blum-produced Home. He’s repped by ICM Partners, Brillstein Entertainment Partners and Ziffren Brittenham.

Diggs is represented by ICM Partners, Management 360 and Franklin Weinrib.