- ClutterActor — The basic element of the scene graph
- ClutterContainer — An interface for container actors
- ClutterChildMeta — Wrapper for actors inside a container
- ClutterMedia — An interface for controlling playback of media data
- ClutterLayoutManager — Layout managers base class
- ClutterLayoutMeta — Wrapper for actors inside a layout manager
- ClutterActorMeta — Base class of actor modifiers
- ClutterAction — Abstract class for event-related logic
- ClutterConstraint — Abstract class for constraints on position or size
- ClutterEffect — Base class for actor effects
- ClutterContent — Delegate for painting the content of an actor