<Tr> <Td> 2016 </Td> <Td> Married by Christmas </Td> <Td> Katie Tate </Td> <Td> </Td> </Tr> <Tr> <Td> 2017 </Td> <Td> A Mother's Crime </Td> <Td> Nikki </Td> <Td> </Td> </Tr> <Table> Television roles <Tr> <Th> Year </Th> <Th> Title </Th> <Th> Role </Th> <Th> Notes </Th> </Tr> <Tr> <Td> </Td> <Td> CSI: Crime Scene Investigation </Td> <Td> Kaitlin Rackish </Td> <Td> Episode: "What's Eating Gilbert Grissom?" </Td> </Tr> <Tr> <Td> 2005 </Td> <Td> CSI: NY </Td> <Td> Jenny Lee </Td> <Td> Episode: "Crime and Misdemeanor" </Td> </Tr> <Tr> <Td> 2005 </Td> <Td> Stacked </Td> <Td> Jasmine </Td> <Td> Episode: "The Ex-Appeal" </Td> </Tr> <Tr> <Td> 2005 </Td> <Td> Freddie </Td> <Td> Sydney </Td> <Td> Episode: "Rich Man, Poor Girl" </Td> </Tr> <Tr> <Td> 2005--15 </Td> <Td> Two and a Half Men </Td> <Td> Kandi / Kimber </Td> <Td> 17 episodes Recurring role (Season 3) Guest star (Seasons 10 & 12) </Td> </Tr> <Tr> <Td> 2007 </Td> <Td> Sands of Oblivion </Td> <Td> Heather </Td> <Td> Television film </Td> </Tr> <Tr> <Td> 2007--2014 </Td> <Td> How I Met Your Mother </Td> <Td> Meg </Td> <Td> 4 episodes </Td> </Tr> <Tr> <Td> 2008 </Td> <Td> Out of Jimmy's Head </Td> <Td> Princess Gugulfa </Td> <Td> Episode: "Princess" </Td> </Tr> <Tr> <Td> 2009 </Td> <Td> Kath & Kim </Td> <Td> Ashley </Td> <Td> Episode: "Bachelorette" </Td> </Tr> <Tr> <Td> 2009--14 </Td> <Td> Drop Dead Diva </Td> <Td> Stacy Barrett </Td> <Td> 78 episodes Main role (Seasons 1--6) </Td> </Tr> <Tr> <Td> </Td> <Td> CSI: Crime Scene Investigation </Td> <Td> Marta Petrovich </Td> <Td> Episode: "Unshockable" </Td> </Tr> <Tr> <Td> </Td> <Td> Psych </Td> <Td> Lauren Lassiter </Td> <Td> Episode: "Dead Bear Walking" </Td> </Tr> <Tr> <Td> 2015 </Td> <Td> Mom </Td> <Td> Selene </Td> <Td> Episode: "Cheeseburger Salad and Jazz" </Td> </Tr> <Tr> <Td> 2015 </Td> <Td> You're the Worst </Td> <Td> Bernadette </Td> <Td> Episode: "Born Dead" </Td> </Tr> <Tr> <Td> 2016 </Td> <Td> Marriage of Lies </Td> <Td> Rachel Wilson </Td> <Td> Television film; originally titled Presumed </Td> </Tr> <Tr> <Td> 2016 </Td> <Td> The Engagement Clause </Td> <Td> Katie </Td> <Td> Television film; originally titled Married by Christmas </Td> </Tr> <Tr> <Td> 2017 </Td> <Td> The Big Bang Theory </Td> <Td> Rebecca </Td> <Td> Episode: "The Separation Agitation" </Td> </Tr> <Tr> <Td> 2018 </Td> <Td> Heathers </Td> <Td> Teyna </Td> <Td> 2 episodes </Td> </Tr> <Tr> <Td> 2018 </Td> <Td> Titans </Td> <Td> Rita Farr / Elastigirl </Td> <Td> Recurring </Td> </Tr> <Tr> <Td> 2018 </Td> <Td> The Wrong Daughter </Td> <Td> Ms. Hanson </Td> <Td> Television film </Td> </Tr> <Tr> <Td> 2018 </Td> <Td> Homecoming Revenge </Td> <Td> Isabelle Wagner </Td> <Td> Television film </Td> </Tr> <Tr> <Td> 2019 </Td> <Td> Doom Patrol </Td> <Td> Rita Farr / Elastigirl </Td> <Td> Main role </Td> </Tr> </Table> <Tr> <Th> Year </Th> <Th> Title </Th> <Th> Role </Th> <Th> Notes </Th> </Tr>

Who plays rebecca on the big bang theory
find me the text answering this question