Initially, Parros acted solely in theater. Eventually, he found minor success on screen. In 1984, Parros landed his first television role as Michael, Tootie's cousin, in The Facts of Life. His first regular series role was on Knight Rider in 1985, playing "RC3", a.k.a. Reginald Cornelius III, the new mechanic (and sometime partner to Michael Knight) who worked on KITT; he appeared in the fourth and final season of the series.
Thereafter, Parros was cast in several popular American soap operas. He appeared on The Young and the Restless in the recurring role of Leo Baines from 1986 to 1987, Santa Barbara in 1992, One Life to Live as the second Dr. Ben Price from 1994 until 1995, and on As the World Turns as Dr. Benjamin "Ben" Robert Harris from 1996-2005. Parros also starred in the short-lived The New Adam-12, a spin-off of the 1960s/1970s popular police drama Adam-12, as Officer Gus Grant. In 1990–91, he played the recurring role of firefighter Eddie Cooper on the CBS comedy The Family Man.
