Is this man the most watched Aussie on American television?

The Aussie Taking on America. TODAY

James O'Halloran Guest Stars as 'Dr Gillespie' on 'Superstore'

Jenna Fischer and James O'Halloran on 'The Talk' CBS

TPIR Wins Daytime Emmy 'Best Game Show'

James surprises Price Super Fan with a new car.

Cynthia wins 'Best Horror Film' at IFS Film Festival

Criminal Minds: Beyond Borders

Deadly Crush

On set filming 'Jane the Virgin'

James O'Halloran on set for 'The Mindy Project'

James O'Halloran cast as 'Ivor' in 'The Catch'

James O'Halloran cast as 'Randy' in 'Cynthia' feature film

James as 'Collin Marks' in 'Criminal Minds'

Ellen Degeneres