Hello Neo_Crisis, and welcome to the forums.
The answer to your question is probably, "Yes". However it depends on your definition of "action".
Wintermute is designed with point-and-click adventure games in mind. If you want action sequences, like say for example, riding a bike down a road, then you're in for some very serious scripting. If you mean something more simple like a shooting range (like Police Quest) then Wintermute is definitely capable of such feats with very little scripting.
If that hasn't answered your question, let me know in a bit more detail what you mean by "action". (Give me an example)
Good luck in your venture, and happy Wintermuting!
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