In May 2002, Corin got married to Jami Schahn. They were close since they were in high school. They began their romantic love affairs since a long time; they welcomed their first child together a daughter named Sadie Joy Nemec in 1993. They are now divorced. His nationality is American and he is of white ethnicity. He is six feet tall in his height.
When Corin was aged 13 years old, he was inspired in acting after he watched the children's film The Goonies. As his acting interest grew with his age, he began training at Centre Stage LA Theatre Company. He also performed in talent showcases. In 1987, he starred the role of Nicky Papadopolis in an American situation comedy Webster. He appeared in this TV series for one year. He got his rise in fame in 1988 after he portrayed the role of Noble Tucker in a 1988 biographical comedy-drama film Tucker: The Man and His Dream. He is also critically acclaimed for starring the role of Parker Lloyd Lewis in an American teen sitcom Parker Lewis Can't Lose. His net worth is $1.5 Million.