He was also known for his role of Master Po in the television series "Kung Fu" (1972–75). In 1985, Luke played 'The Ancient One' on the soap opera "General Hospital", for the Asian Quarter storyline, which showcased strong chemistry between Luke and young actress Kimberly McCullough, whom he mentored. In 1986, Luke appeared in season two of "The Golden Girls" as Sophia's love interest. Additionally Luke voiced many animated series including Brak in Space Ghost, the aforementioned Charlie Chan, and Zoltar/The Great Spirit/Colonel Cronus in "Battle of the Planets".