make object invisible to camera only (but visible to reflections)

As the title says. I am working on scifi scene where I would like to make strong reflection on surfaces and reflection captures just won’t do. Solution i found is to strategicaly place actors with emmisive material that would reflect in the surface just the way i need it. The problem is, those actor also shine into the camera and ruin entire scene. Would it be possible to add this feature? There is already somewhat similar feature where actor can be hidden in the game but still cast shadow.

Thanks,
H