Captain Daniel Gregg is a fictional character from the television series Ghost Whisperer. He is portrayed as a kind and wise spirit who helps the main character, Melinda Gordon, communicate with the deceased. Captain Gregg often provides guidance and support, assisting Melinda in her efforts to help lost souls find peace. In life, Captain Gregg was a naval officer, and his character is known for his strong sense of duty and loyalty. His backstory includes a tragic love story, which adds depth to his character. Throughout the series, he serves as a mentor to Melinda, helping her navigate the challenges of her unique abilities.