Complex sentence: He played Clay Alden in the soap opera "Loving" from 1987 through 1990, then left for personal reasons before returning to the show in 1993, this time in the role of Alex Masters.
Split into simpler sentences: He played Clay Alden in the soap opera, "Loving" from 1987 through 1990. Mantooth left for personal reasons in 1990, before returning to the show in 1993, this time in the role of Alex Masters.