Papillon began her porn career in 1988 at the age of 21, with Introducing Kascha (Girls of the Double D 7 (1987) (V) (as Kascha) at the age of 20). She was photographed by Suze Randall in the August 1988 issue of Penthouse, and was on the cover of the November 1989 Hustler magazine. Kascha was one of the early performers to use "high class spreads" in men's magazines as an entry into pornographic acting. Among her appearances she was the cover girl for High Society in July 1988 (photographed by Suse Randall), Leg Show in September 1988, Juggs in February 1990, and the Very Best of High Society number 20. She appeared in the July/August 1991 Girls of Penthouse, photographed by Earl Miller. She then appeared in over 30 features, starring in several that included her name in the title (including Educating Kascha and From Kascha with Love). In 1988-89, she starred in all eight films in the Hawaii Vice series, directed by Ron Jeremy. She left adult films in 1994, after which she performed as an exotic Dancer for a few years before dropping out of the public eye.

Papillon also had bit parts in a few B-movies under the name "Alison LePriol", including Caged Fury (1989), and Fortress of Amerikkka (1989).

She was billed as being of mixed descent (half Chinese and half Swedish), and was known for her East Asian features and contrasting blonde hair. However, according to Anthony Petkovich's 2002 book, The X Factory: Inside the American Hardcore Film Industry, she is simply of Chinese origin. Kascha was married to French porn actor Francois Papillon, and did most of her pornographic work with him, and was one of the handful of porn stars of her era who sought to make a career of only having sex on film with one person. The butterfly tattoo on her left buttock, is presumably a reference to her husband, as papillon is the French word for "butterfly".

The most recent release under Papillon's name came in August 2007, when CDI Digital released Totally Kascha, including some previously unseen material, outtakes from previous films.

In 2011, Complex magazine ranked her at #10 in their list of “The Top 50 Hottest Asian Porn Stars of All Time.”