Jon Wellner

{{short description|American actor}}

{{for|the statistician|Jon A. Wellner}}

{{Infobox person

| name = Jon Wellner

| image=

| caption =

| birth_name =

| birth_date = {{Birth date and age|mf=yes|1975|07|11}}

| birth_place = Evanston, Illinois, U.S.

| occupation = Actor

| yearsactive = 1997–present

| website =

}}

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 from 2004 through to the 2015 season, his 11th with the show.{{cite news|url=http://www.nypost.com/p/entertainment/tv/starr_report_RoaVlWNPiYlsUKjR59L8VJ|title=Starr Report|last=Starr|first=Michael|date=March 20, 2013|work=New York Post|accessdate=29 March 2013}}

He began his affiliation with the show in season 4 as a researcher, verifying that the information on the show was accurate.{{cite news|url=http://www.buddytv.com/articles/csi/jon-wellner-talks-about-his-du-14724.aspx|title=Jon Wellner Talks About His Dual Role on 'CSI'|last=DeLeon|first=Chris|date=December 13, 2007|work=Buddy TV|accessdate=29 March 2013}} 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, CSI: Miami, and Drop Dead Diva.{{cite news|url=http://hamptonroads.com/2011/04/revealing-secrets-producing-csi |archive-url=https://web.archive.org/web/20110430170046/http://hamptonroads.com/2011/04/revealing-secrets-producing-csi |archive-date=30 April 2011 |url-status=dead |title=Revealing secrets of producing 'CSI'|last=Ollison|first=Rashod|date=April 26, 2011 |publisher=HamptonRoads.com |agency=The Virginian-Pilot|accessdate=29 June 2020}}