Was Cerberus considered to be scary?

Yes, Cerberus, the three-headed dog from Greek mythology, was indeed considered to be a frightening creature. As the guardian of the Underworld, he was tasked with preventing the dead from leaving and the living from entering, which contributed to his menacing reputation. His fierce appearance and growls were meant to instill terror, embodying the darker aspects of the afterlife. Overall, Cerberus symbolizes the fear of death and the unknown.