Jennifer Ann O'Carroll is an Irish actress. She is best known for playing Cathy Brown in the BBC television sitcom, Mrs. Brown's Boys and its adaptions. She also appeared as contestant on the twelfth series of Strictly Come Dancing in 2014.

Strictly Come Dancing returned for its twelfth series beginning from 7 September 2014 with a launch show, and the live shows began on 26 and 27 September. Tess Daly returned to present the main show on BBC One alongside Claudia Winkleman, who was promoted to co-presenter in addition to the results show after Sir Bruce Forsyth departed the show after the eleventh series; however, Forsyth continued to host the Christmas and Children in Need specials. Zoe Ball returned as presenter of the spin-off show Strictly Come Dancing: It Takes Two on BBC Two. Judges Darcey Bussell, Len Goodman, Craig Revel Horwood, and Bruno Tonioli also returned.