Victor Bennett

Year One
It mentioned that Phoebe was in New York in a failed attempt to find her father.

In Last Witch Effort, he had a talk with Paige's husband, Henry Mitchell, about being someone non-magical married to a witch, something that had been bothering Henry since Mortal Enemies when he was affected by a spell and attacked Paige.

Volume 2

 * "You may not have powers. You may not know magic. But you are part of her strength. She needs you more than you need magic." - Last Witch Effort