Jeff Colby is a fictional character from the popular television series Dynasty. He is portrayed as a wealthy and ambitious businessman, often involved in the complex dynamics of the Colby family and their rivalries. His character is known for navigating the challenges of love, power, and betrayal within the high-stakes world of the elite. In the series, Jeff is the son of Matthew Blaisdel and Claudia Blaisdel, and he becomes a significant player in the family's business dealings. His relationships with other characters, including Fallon Carrington, add depth to the storyline, showcasing themes of loyalty and conflict in a glamorous setting.