| William Zimmerman | |
|---|---|
| Sanctuary character | |
 Robin Dunne as Will Zimmerman | |
| First appearance | Webisode 1 (web series) "Sanctuary for All" (TV series) |
| Last appearance | "Sanctuary for None (Part 2)" (TV series) |
| Created by | Damian Kindler |
| Portrayed by | Robin Dunne Dorien Provost (Young Will) |
| In-universe information | |
| Occupation | Forensic psychiatrist Behavioral Analysis Unit Agent of the Sanctuary Network |
| Family | Mary Anne Zimmerman (Mother, deceased) |
| Relatives | Jack Zimmerman (Deceased) |
| Nationality | American |
Dr. William "Will" Zimmerman is a main character and male lead of the Canadian fantasy-science fiction television series Sanctuary. He is portrayed by Robin Dunne. Will is introduced in the series as an FBI's Behavioral Analysis Unit forensic psychiatrist, who was recruited by Helen Magnus (Amanda Tapping), head of the Sanctuary Network, to become her recent protégé.
Dunne was approached to appear on the series by director Martin Wood, whom he worked with before, but was initially reluctant to appear in the original web series. The second season of the show introduced more of a darkness to the character. In the third season, Will appears in a more leadership position, and becomes instrumental in the Hollow Earth story-arc.
Critical reactions behind the character, and Dunne's portrayal, were generally positive reviews, with some television critics comparing Will to Stargate SG-1 character Daniel Jackson. Dunne's portrayal of Will earned him a Leo Award for "Best Lead Performance by a Male in a Dramatic Series" in 2010. He was nominated a further two Leo Awards in the same categories and a Constellation Award, in which he narrowly lost to Doctor Who actor David Tennant.