Among the television programs he appeared in were Secret Agent X-9 and China Smith.

Lung's television credits include Guys Like O'Malley, a story about an observation post during the Korean war, in which he appeared along with James Best and Neville Brand.

[2] Later he played Attorney Yung in Experiment in Terror, a film that starred Glenn Ford and Lee Remick.

[4] In that film, he had the distinction of being the only American actor of Chinese descent to play an adult member of the Tan family and have screen credit.

[5] He appeared alongside John Lupton and James Hong in the 1959 film Blood and Steel.