[2][4][6] From 2009 to 2011 she played the recurring role of the serial kidnapper and murderer Heather Taffet (aka "The Gravedigger") on the television series Bones.
In 2011 Lovejoy also appeared in the role of the mother of a student in the film Bad Teacher starring Cameron Diaz.
Lovejoy has also guest starred or held recurring roles on such TV series as Lie to Me, Law & Order: Criminal Intent, Criminal Minds, Body of Proof, Girls, Orange Is the New Black, American Gothic, The Blacklist, and Shameless.
[4][2][3][10] Lovejoy has also appeared in several Broadway productions, including Six Degrees of Separation (1990), Getting and Spending (1998), The Gathering (2001) and Nora Ephron’s Lucky Guy starring Tom Hanks (2013).
[4][5] In 2019, Lovejoy took part in Promethea in Prison, a theatrical project that involved a reading of the ancient Greek play Prometheus Bound.