James Thomas Denton Jr. (born January 20, 1963) is an American actor. He is best known for playing Mike Delfino on ABC's comedy-drama series Desperate Housewives (2004–2012) and Dr. Sam Radford on Hallmark Channel's comedy-drama series Good Witch (2015–present).
Denton was born January 20, 1963, in Nashville, Tennessee, and grew up in nearby Goodlettsville, the second of three children. His father, J.T. Denton (1930–1993), was a dentist who had served in the military. His mother, Mary Jean Woolslair Denton, died from breast cancer in 2002. Denton was raised Southern Baptist and became a Minister of Music at Westmoreland United Methodist Church in Westmoreland, Tennessee.
Denton graduated from Goodlettsville High School, and attended the University of Tennessee, where he was a member of the Sigma Alpha Epsilon fraternity. He majored in Television/Journalism, and earned a degree in Advertising. Before becoming an actor, he sold advertising for two radio stations. He began acting at the age of 23, at a community theater in Nashville. He eventually moved to California to become a full-time actor. Early in his career, he was sometimes credited as Jamie Denton.