That is Unity's default font Arial. Sorry it's not showing up! That's strange.
From the Unity manual:
Cheers :)
| Include Font Data | This setting controls the packaging of the font when used with Dynamic font property. When selected the TTF is included in the output of the build. When not selected it is assumed that the end user will have the font already installed on their machine. Note that fonts are subject to copyright and you should only include fonts that you have licensed or created for yourself. |