Famous during the early 1980s as a Saturday Night Live cast member, she went on to appear in the comedy films Baby Boom, Feds and The Santa Clause. She also appeared in episodes of The People Next Door; Boston Legal; Sabrina, the Teenage Witch; and numerous other television series.
She trained with Chicago's famous Second City comedy troupe.
A native of Chicago, Illinois, she is the child of Virginia Cahill and William Gross and the sister of Family Ties actor Michael Gross.
She and Josh Hartnett both appear in the 2002 romantic comedy 40 Days and 40 Nights.