As a child then a teen actor in the mid to late 1980s, Caspary had minor roles on television and movies. Her first role was as a Dancer in the 1982 movie Annie, then appeared three years later on an episode of the TV series Silver Spoons.
Caspary's performance in the 1986 TV movie News at Eleven earned her a nomination for a Young Artist Award in the Exceptional Young Actress Starring in a Television Special or Movie of the Week category. Her 1987 supporting role in Can't Buy Me Love earned a second Young Artist nomination, for Best Young Actress in a Motion Picture - Comedy. Caspary's starring role in 1988's Mac and Me earned her a third Young Artist Award nomination.
Caspary quit acting after two teen roles in 1989's My Mom's a Werewolf and Teen Witch, re-focusing on dance.
In 1996, Caspary launched a line of dance clothing called Katrina Activewear.
