Mick Riva is a fictional character from the novel "Malibu Rising" by author Taylor Jenkins Reid. He is portrayed as a famous rock star and the father of the four Riva siblings. His charismatic personality and tumultuous relationships significantly impact the lives of his children, shaping their experiences and struggles. In the story, Mick's past fame and lifestyle create a backdrop for the family's dynamics. His absence and the legacy he leaves behind play a crucial role in the narrative, influencing the siblings' decisions and their annual summer party, which becomes a pivotal event in the plot.