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 both in
television and audio adventures. He has also appeared in three
episodes of Doctor Who: the two-parter "The Stolen Earth"/"Journey's
End" (2008), and the Tenth Doctor's 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.Luke Smith is introduced
as "the Archetype" in the first episode of The Sarah Jane Adventures,
the New Year's Day special "Invasion of the Bane" (2007). The Bane
known as Mrs Wormwood (Samantha Bond) creates the Archetype from
thousands of samples of DNA taken from visitors touring their Bubble
Shock! drink factory. This enables the Bane to run tests on an
archetypal human. Luke appears to be an ordinary adolescent boy,
except for his lack of a navel having been grown rather than gestated
and born naturally. He possesses a superhuman intelligence and an
exceptional eidetic memory.During one tour of the factory, an alarm is
set off when visitor Kelsey Hooper's (Porsha Lawrence Mavour) mobile
phone disturbs the Bane Mother. The Archetype awakes and proceeds to
escape with visitor Maria Jackson (Yasmin Paige) and her investigative
journalist neighbour, Sarah Jane Smith (Elisabeth Sladen). After the
Bane Mother sends assassins to kill the group, they return to confront
the Bane. The Archetype saves the day by recalling an exceptionally
long sequence of numbers necessary to trigger an explosion in the
Bubble Shock! factory. In the episode's dénouement, Sarah Jane adopts
the boy, naming him "Luke Smith", having also considered the names
"Harry" and "Alistair" after her friends Harry Sullivan (Ian Marter)
and Brigadier Sir Alistair Lethbridge-Stewart (Nicholas Courtney). Her
sentient supercomputer Mr Smith (voiced by Alexander Armstrong) forges
and distributes all the necessary paperwork to formalise the adoption.
Sarah Jane reveals to Luke and Maria that she is a former time
traveller, having been a companion of the Doctor (Jon Pertwee and Tom
Baker) and lives a dangerous life investigating alien invasions and
schemes on Earth. Luke Smith (The Sarah Jane Adventures) Biography, NetWorth, Height, Age, Weight, Family, Married, Son, Daughter