Patrick O'Brien is a recurring character on Just Add Magic. He is Darbie's father and a friend of the girls' fathers. His first appearance was in Just Add Mama P and he is portrayed by Todd Robert Anderson.
Patrick has curly orange hair and round green eyes. He has a soft face to complement his light-colored features. Usually, Patrick is seen wearing formal outfits such as dress shirts and polo shirts.
Mr O'Brien's personality is kind, and loving. He understands his daughter, Darbie very well and never hesitates to spend time with her, unless he has to do work and things only to help his daughter. He is known to love the great outdoors, and shows this in Season 1, in Just Add Camping. When dating his girlfriend, Amy, he tries to encourage Darbie into loving her like her original mother, Jenny Schmidt. He is a very hardworking man.
Sometime, when Darbie was in elementary school, he and Jenny (Darbie's original mother), got divorced. When Darbie was about 12, he met Amy and started dating her.