The doll can be a representation of the soul of a particular person who can be helped, or harmed, by sympathetic magic or witchcraft. The puppet, far from being malign, is a doll that is fashioned for a particular purpose. In dreams it serves as a focus of energy.
Psychological / Emotional Perspective:
We tend to learn through play, and for a doll to appear in a dream usually indicates the need to relearn some childhood lessons that we have forgotten. A puppet rather than a poppet can suggest that we are being manipulated.
Everyday Material Aspects:
A doll can depict either how we felt as a child, or a need for comfort. It may also express an undeveloped part of our personality.
Consult the entry for Puppet for additional information.