[citation needed] Lyndon received Australian Film Institute Award (AFI) nominations for Best Supporting Actor for the 1997 drama Blackrock.

[3] Other films include Fresh Air, Sample People, The Thin Red Line, From the Outside,[4] Caught Inside,[5] Falling in the Paradise,[6] The Glenmore Job,[7] The Well and Dust off the Wings[8] Lyndon's TV appearances include Police Rescue, Heartbreak High, Wildside,[4] Underbelly[9] and Canal Road.

The lead role of Connor Der Kilte was played by fellow Australian and Lyndon's former Blackrock co-star Heath Ledger.

[citation needed] In 2013 Lyndon was in a four-person play called Anaconda by Sarah Doyle, with Tamarama Rock Surfers at Bondi Pavilion.

[citation needed] He has also appeared on stage in That Eye the Sky, Blackrock (in a different role to which he played in the film version), Cloudstreet and Popcorn.