Fading into oblivion!!! HELP!!!!

I know what I want to do but I am not sure where to start.

I am making a 2D paper side scroller and I want to be able to press a key and have an actor become visible. I know how to do this. The catch is the sprite for the actor is semi transparent. When I place the actor in the level and press play the actor fades until you cannot see it any more. I don’t want this to happen. I want it to always be visible. I created the image to be slightly transparent and did not create any blueprints to make it transparent. What can I do to stop the fading into oblivion?Or would it be better to set the transparency or opacity via blueprint? If via blueprint, how would I go about doing that. I found some tutorials online to set opacity in blueprint but it reference materials and I am not using any materials since it is a 2d paper side scroller. Thanks in advance!!!