In Mind Your Own Business, Kristy!, John said that he used to comb his hair like Jack Brewster, a former Mets player.
John once burned his hand cooking for the family when they are sick in Dawn's Wicked Stepsister, and will have a scar.
Dee and John sit down with Mallory to explain that she's been feeling taken advantage of in Mallory on Strike. She and John agree to make a day for Mal to focus on herself. They apologize and try not to do it again.
His Uncle Joe bought him a puppy named Spanky for his eighth birthday when he was young. John remembers Joe to be the greatest uncle. He would pull a nickel out of his ear every time he saw him. John would believe that nickel grew in his ears and only Uncle Joe would know how to get them out in Mallory and the Ghost Cat.
- Sombergs (SS#7)
- He was there when he saw the fire in The Fire at Mary Anne's House to help.
- John has Beach Boys CDs.
- Mallory says that her dad is usually a sensitive, gentle person in Poor Mallory!.
- He has a pair of awful old slippers that the triplets tease him about in Poor Mallory!.
- He has his own recipe for something called "Daddy Stew" in Mary Anne's Bad-Luck Mystery.
- His name is written as Daniel on a postcard in California Girls!.
He is played by actor Stephen Weigand. John is renamed Forest, likely because of the number of fathers named 'John' in the original series. This is the first time he's been portrayed on screen.