<Table> <Tr> <Th_colspan="2"> Chicago Fire </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Genre </Th> <Td> <Ul> <Li> Action </Li> <Li> Drama </Li> </Ul> </Td> </Tr> <Tr> <Th> Created by </Th> <Td> <Ul> <Li> Derek Haas </Li> <Li> Michael Brandt </Li> </Ul> </Td> </Tr> <Tr> <Th> Starring </Th> <Td> <Ul> <Li> Jesse Spencer </Li> <Li> Taylor Kinney </Li> <Li> Monica Raymund </Li> <Li> Lauren German </Li> <Li> Charlie Barnett </Li> <Li> David Eigenberg </Li> <Li> Teri Reeves </Li> <Li> Eamonn Walker </Li> <Li> Yuri Sardarov </Li> <Li> Christian Stolte </Li> <Li> Joe Minoso </Li> <Li> Kara Killmer </Li> <Li> Dora Madison </Li> <Li> Steven R. McQueen </Li> <Li> Miranda Rae Mayo </Li> </Ul> </Td> </Tr> <Tr> <Th> Composer (s) </Th> <Td> Atli Örvarsson </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> United States </Td> </Tr> <Tr> <Th> Original language (s) </Th> <Td> English </Td> </Tr> <Tr> <Th> No. of seasons </Th> <Td> 6 </Td> </Tr> <Tr> <Th> No. of episodes </Th> <Td> 120 (list of episodes) </Td> </Tr> <Tr> <Th_colspan="2"> Production </Th> </Tr> <Tr> <Th> Executive producer (s) </Th> <Td> <Ul> <Li> Dick Wolf </Li> <Li> Matt Olmstead </Li> <Li> Danielle Gelber </Li> <Li> Michael Brandt </Li> <Li> Derek Haas </Li> <Li> Joe Chappelle </Li> <Li> Arthur W. Forney </Li> <Li> Peter Jankowski </Li> <Li> Todd Arnow </Li> <Li> Andrea Newman </Li> <Li> Michael Gilvary </Li> </Ul> </Td> </Tr> <Tr> <Th> Producer (s) </Th> <Td> <Ul> <Li> John L. Roman </Li> <Li> Todd Arnow </Li> <Li> Tim Deluca </Li> <Li> Hilly Hicks Jr . </Li> <Li> Carla Corwin </Li> <Li> Michael Gilvary </Li> </Ul> </Td> </Tr> <Tr> <Th> Running time </Th> <Td> 42 minutes </Td> </Tr> <Tr> <Th> Production company (s) </Th> <Td> <Ul> <Li> Wolf Films </Li> <Li> Universal Television </Li> </Ul> </Td> </Tr> <Tr> <Th> Distributor </Th> <Td> NBCUniversal Television Distribution </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> NBC </Td> </Tr> <Tr> <Th> Original release </Th> <Td> October 10, 2012 (2012 - 10 - 10)--present </Td> </Tr> <Tr> <Th_colspan="2"> Chronology </Th> </Tr> <Tr> <Th> Related shows </Th> <Td> <Ul> <Li> Chicago P.D. </Li> <Li> Chicago Med </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Th> Website </Th> <Td> www.nbc.com/chicago-fire </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Chicago Fire </Th> </Tr>

How many seasons of chicago fire have there been
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