Luke Smith is a fictional regular character played by Tommy Knight in the British children's science fiction television series The Sarah Jane Adventures, a spin-off of the long-running series Doctor Who. Luke is a regular character in The Sarah Jane Adventures and has also appeared in three episodes of Doctor Who: the two-parter "The Stolen Earth"/"Journey's End" (2008), and Tenth Doctor finale episode "The End of Time, Part Two" (2010).
Within the narrative of the series, Luke is a human archetype, created by alien species the Bane from thousands of DNA samples, who comes to be adopted by the series' heroine, Sarah Jane Smith (Elisabeth Sladen). Luke is something of a child prodigy, showcasing a remarkable degree of genius but also a level of social ineptitude owing to being born in adolescence.
Famous quotes containing the words luke and/or smith:
“Then the father said to him, Son, you are always with me, and all that is mine is yours.”
—Bible: New Testament, Luke 15:31.
“He sowed our spawn in the world’s dim dawn,
And I know that it shall not die;”
—Langdon Smith (1858–1908)