Mame Dennis is a fictional character from the musical and film adaptation of Auntie Mame, created by Patrick Dennis. She is known for her vibrant personality, adventurous spirit, and unconventional lifestyle, living life to the fullest in the 1920s and 1930s. Mame becomes the guardian of her young nephew, Patrick, after the death of his father, leading to a series of humorous and heartwarming experiences. The character of Mame Dennis has been portrayed by several actresses, most notably Angela Lansbury in the original Broadway production and Lucille Ball in the film version. Her story emphasizes themes of love, family, and the importance of embracing life's opportunities.