Grace's Father is an unseen character in Facade, However, sometimes in gameplay, he will call the phone. He can be heard over the Phone trying to speak to grace, or if the phone isn't picked up by the player; over the receiver. Grace will be annoyed afterwards and say that "They expect her to drive down to Connecticut to attend their "parties"."
Grace's Father obviously has spoilt Grace growing up, and it is also revealed when Trip and Grace start arguing.