He has also appeared in American television roles, such as Julius Caesar on Spartacus: War of the Damned, Julian on The Vampire Diaries and Edward Clariss / Rival on The Flash.

In 2020, he partnered with his Spartacus co-star Liam McIntyre to create the gaming series Get Good for the CouchSoup YouTube channel, following a charity livestream benefiting Black Summer.

[5][6] In March 2010, the Sydney Morning Herald reported Lasance had signed on to co-star in the drama mini-series Cloudstreet, based on the Tim Winton novel of the same name, in which he played the role of Quick Lamb.

[7] In September 2010, Nine Network announced Lasance had signed on to appear in a recurring role on the third season of the adventure drama series Rescue: Special Ops.

[8] In January 2011, Lasance was confirmed to be a principal character on the ABC1 legal drama series Crownies in which he played the charismatic young lawyer Ben McMahon.

[9] In 2012, Lasance played the role of the young Julius Caesar in the fourth and final season of the American historical action series Spartacus: War of the Damned.

[10] Lasance will play the lead role of Sergeant Jim "JD" Dempsey in the upcoming Network 10/Paramount+ series NCIS: Sydney.

He attended St. Philip's Christian College and studied drama as part of his Higher School Certificate before receiving further formal training as an actor at Screenwise in Sydney.