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Also known as Robin Goodfellow, Puck is Oberon’s jester, a mischievous fairy who delights in playing pranks on mortals. Though A Midsummer Night’s Dream divides its action between several groups of characters, Puck is the closest thing the play has to a protagonist. His enchanting, mischievous spirit pervades the atmosphere, and his antics are responsible for many of the complications that propel the other main plots: he mistakes the young Athenians, applying the love potion to Lysander instead of Demetrius, thereby causing chaos within the group of young lovers; he also transforms Bottom’s head into that of an butt
Helena is one of the most personable characters of the play. Helena represents the archetype of a lovesick young woman, pinning for a man. She is desperately in love with Demetrius, and she is the character that thinks the most about love. Helena is determined to win Demetrius's love, however, she is also unsure of herself, constantly worrying about her appearance and believing herself unworthy of love.