In Camera component manual, the docs say:
Near Z
(Perspective camera only) - The Z-value of the near clipping plane.
Far Z
(Perspective camera only) - The Z-value of the far clipping plane.
Turns out these are not only for perspective cameras. I have an ortho camera and was wondering why my game object was not showing up. The default Near Z = 0.1, whereas my GO was Z = 0, behind the frustum. Changing the Near/Far Z to [-1, 1] fixed my issue, when in fact I have an ortho camera.
Defold 1.4.3, Editor 2.0.