Jon Wellner (born July 11, 1975) is an American actor, best known for his role as toxicologist Henry Andrews on '' CSI: Crime Scene Investigation''. He has portrayed Andrews through the 2014–2015 season, his 10th with the show. He began his affiliation with the show in Season 4 as a researcher, verifying that the information on the show was accurate. He had a role as a zookeeper in Season 5, then took on the role of Andrews. He continues to serve as a researcher for the show. In 2009 he and fellow cast member/researcher David Berman formed a company that does research for several other television forensics shows including ''

Bones A bone is a rigid organ that constitutes part of the skeleton in most vertebrate animals. Bones protect the various other organs of the body, produce red and white blood cells, store minerals, provide structure and support for the body, an ...

'', '' CSI: Miami'', and ''

Drop Dead Diva ''Drop Dead Diva'' is an American legal comedy-drama/fantasy television series that aired on Lifetime from July 12, 2009, to June 22, 2014. The series was created by Josh Berman and produced by Sony Pictures Television. It stars Brooke Elliot ...

''.

Filmography

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* {{DEFAULTSORT:Wellner, Jon 1975 births Living people Male actors from Evanston, Illinois American male television actors