Among his best known roles, Webber has portrayed Mötley Crüe lead singer Vince Neil in the 2019 film The Dirt,[1] Lee Harvey Oswald in the American science fiction thriller miniseries 11.22.63 and Lewis Wilson in the series The Punisher.

Webber grew up on the New South Wales Central Coast and attended Green Point Christian College.

He got the role after sending in an audition tape, which he had two days to prepare for, including watching newsreels of Oswald and listening to clips of his voice.

"[9][10] In 2016, he starred alongside Lena Headey and fellow Australian Eliza Taylor in the police drama film Thumper.

[11] Webber played a distraught United States Army veteran who suffers from PTSD in the Netflix television series The Punisher.