First writing job was on the Nickelodeon sitcom Clarissa Explains It All
Has written scripts for King of the Hill, The Bernie Mac Show and The Drew Carey Show
Had never acted before the role of The Office's HR director, Toby Flenderson, was written for him
Also serves as an executive producer, writer and occasional director on the hit NBC sitcom
Sister is TV executive Susanne Daniels, who is married to Greg Daniels, executive producer of The Office; Lieberstein also worked with his brother-in-law on King of the Hill
Office-type jobs have included working in an accounting firm, at a law firm and as an auditor (which was his first job after college graduation and lasted only six months)
Awards
2012Screen Actors Guild Awards-Outstanding Performance by an Ensemble in a Comedy Series:nominated
2011Emmy-Outstanding Comedy Series:nominated
2011Screen Actors Guild Awards-Outstanding Performance by an Ensemble in a Comedy Series:nominated
2010Screen Actors Guild Awards-Outstanding Performance by an Ensemble in a Comedy Series:nominated
2010Emmy-Outstanding Comedy Series:nominated
2009Screen Actors Guild Awards-Outstanding Performance by an Ensemble in a Comedy Series:nominated
2009Emmy-Outstanding Comedy Series:nominated
2008Screen Actors Guild Awards-Outstanding Performance by an Ensemble in a Comedy Series:nominated
2008Emmy-Outstanding Comedy Series:nominated
2007Screen Actors Guild Awards-Outstanding Performance by an Ensemble in a Comedy Series:winner
2007Emmy-Outstanding Comedy Series:nominated
2006Emmy-Outstanding Comedy Series:winner
2006Screen Actors Guild Awards-Outstanding Performance by an Ensemble in a Comedy Series:winner