In addition, Baumgartner performed regionally at the Guthrie Theater, Berkeley Repertory Theatre, Children's Theater Company, and Theatre de la Jeune Lune.
In 2008, Flannery was a talent scout on Last Comic Standing with her Office costar Brian Baumgartner, and she appeared with the cast of The Office on Celebrity Family Feud.
Brian Eno | Brian Mulroney | Brian May | Brian Wilson | Brian Ferneyhough | Hugh O'Brian | Brian Williams | Brian Stableford | Brian Aldiss | Brian | What About Brian | Brian Clough | Brian Stokes Mitchell | Brian Lara | Brian De Palma | Brian Dennehy | Brian Michael Bendis | Brian Lenihan | Brian Cox | Brian Boru | Patrick O'Brian | Brian Setzer | Brian McKnight | Brian Evenson | Brian Culbertson | Brian Cox (actor) | Brian Aherne | Brian Sibley | Brian Keith | Brian Jones |