Volta was Imogen Moreno's pet Bloodhound.
In Need You Now (1), he is first seen with Louis Moreno answering the door when Eli Goldsworthy asks if Imogen is there. Volta licks Eli's hands energetically, and Mr. Moreno comments that he seems to like Eli.
In Never Ever (1), he is lost and Imogen is about to go take her father's car to look for him. She looks underneath the car and notices a puddle of blood on the pavement. Underneath the car is Volta who had been run over and killed by her father. She falls to the ground and cries as Fiona Coyne tries to comfort her. Her father doesn't remember running him over.