[2] Lang made her acting debut in the film Skatetown, U.S.A. (1979), alongside Scott Baio, Maureen McCormick, and Patrick Swayze.

That was followed by guest roles in numerous television series such as The Powers of Matthew Star, Masquerade, Riptide, Magnum, P.I., Happy Days, The Fall Guy and 1st & Ten.

In 1985, she appeared in four music videos: Alabama's "There's No Way" (where she played the love interest of Alabama lead singer Randy Owen) The Beach Boys' "Getcha Back" and its sequel "It's Gettin' Late" and The Medflys' "Compulsive" for a band from her childhood hometown, Carmel CA.

Her love affair with Ridge Forrester (originally played by Ronn Moss, and since 2013 by Thorsten Kaye) has been a key story arc for 35 years, and a love triangle among Brooke, Ridge and Taylor (Originally played by Hunter Tylo and later Krista Allen and Rebecca Budig) stretched over more than thirty years starting with Taylor's entrance to the show in 1990.

[4] In 1999, she appeared as Brooke in The Young and the Restless, interacting with Eric Braeden (Victor), Peter Bergman (Jack), and Eileen Davidson (Ashley).