MainActor was video editing software from MainConcept for Windows also for Linux.
In the beginning the software was written on the Amiga.
A free demo version, that shows a watermark, was available.
MainActor was created and developed by Markus Moenig, the CEO of MainConcept at that time.
In May 2007, MainConcept decided to discontinue the supply and development of MainActor.