Following her graduation from Wesleyan University, the Connecticut resident went to New York to hone her skills in daytime TV and theatre. She starred on Broadway in 'A Life' and received critical acclaim in a number of off-Broadway productions, including Nicholas Kazan's 'Blood Moon', which led to her move to Los Angeles for the west coast production of the controversial drama. Opting to stay in LA after the run of the play, Delany was soon cast in popular TV shows such as 'Moonlighting' and 'Magnum, P.I'.
She went on to make her mark as Army nurse Colleen McMurphy on the critically-acclaimed series 'China Beach', for which she received two Emmy Awards.
For three seasons, Delany portrayed Katherine Mayfair on 'Desperate Housewives'. She has also featured in a two-part episode of 'Castle', where she played Special Agent Jordan Shaw, an FBI profiler assigned to help catch a serial killer.
Delany has appeared in a number of films, including 'Tombstone', 'Housesitter', 'Masquerade', 'Route 30', 'A Beautiful Life' and 'Camp Hope'. Delany recently completed production on the independent feature 'Freelancers', starring Robert DeNiro, Forest Whitaker and Curtis '50 Cent' Jackson.
Theatre credits include 'Much Ado About Nothing', opposite Billy Campbell at the Old Globe Theatre in San Diego, and the Pulitzer prize-winning play 'Dinner with Friends', alternating roles in New York, Los Angeles and Boston.
Since 1996 Delany has provided voice-over work as Lois Lane on the WB's animated series 'Superman', 'The Batman/Superman Adventures', 'Justice League' and most recently, 'Batman'.