Joker 
A joker in a dream represents the devious side of your personality. In a dream the joker might lure you into actions which in your daily life would be taboo or dangerous.
Batman
Batman appearing in your dream indicates your life is missing someone with admirable qualities who you can look up to and can depend on in difficult times.
Alternatively, if you are a big fan of Batman, his appearance in your dream may simply be wish fulfillment like your mind exploring a situation in which you interact with a heroic character.
Comedian
To dream of a comedian implies that you should be less serious and try to have more fun in your life. Issues in your life may be overwhelming you right now and you are seeking a way to relieve the stress. Lighten up, be more spontaneous, and learn how to enjoy your life.
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