<Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Td_colspan="2"> Website </Td> </Tr> <P> Lethal Weapon is an American buddy cop action comedy - drama television series developed by Matt Miller and based on the franchise of the same name created by Shane Black . The show premiered on Fox on September 21, 2016 and has run for two seasons, with a third season upcoming . </P> <P> For its first two seasons, Lethal Weapon starred Damon Wayans as Roger Murtaugh and Clayne Crawford as Martin Riggs, mismatched detective partners who were also the main characters in the film series, originally played by Danny Glover and Mel Gibson . The series includes other characters directly or loosely inspired by characters from the films, including Leo Getz (played by Thomas Lennon)--a close friend of Riggs and Murtaugh . </P>

How many seasons is there of lethal weapon
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