She appeared in two Paramount Pictures comedy features: The Man Who Wasn't There (1983), a 3-D production, and National Lampoon's Joy of Sex (1984), directed by Martha Coolidge.
In 1985 Langlois co-starred in the romantic comedy The Slugger's Wife, where she played a struggling singer and performed her own musical numbers after auditioning for Quincy Jones.
She made guest appearances on television programs such as Murder, She Wrote in 1986, and she performed on stage in the La Jolla Playhouse's production of Once in a Lifetime in 1988.
She played the heroine in Roger Corman's horror film The Nest (1988) and co-starred in a made for TV movie, The Strange Case of Dr. Jekyll and Mr. Hyde (1989).
She worked steadily including parts in the action pictures The White Tiger (1995) and The Final Cut (1995), alongside Sam Elliott.