when I click on the menu choices for types of actuators in blender creator 2.22 I see that there is and ‘Action Actuator’ I just downloaded and installed blender publisher from blender.org. (Which is version 2.24 btw) and I notice that the same actuator is not there anymore. Was this change on purpose?
Can anyone anwer this it really has me unerved.
Hello
relax, it’s christmas time!! 
You must add an Armature to (re)get the Action Actuator!
Actions only work in Armature objects
Bye
António