His son Marvis became a boxer -- trained by Frazier himself -- but was unable to match his father 's success .
After retiring , Frazier made cameo appearances in several Hollywood movies , and two episodes of The Simpsons .
Frazier 's son Marvis became a boxer -- trained Frazier Frazier himself -- but was unable to match his father 's success .
After retiring , Frazier made cameo appearances in several Hollywood movies , and two episodes of The Simpsons .