He is a student at Millard Fillmore Middle School. He is typically an outcast from the "cool" groups.
Frederick is a kid in Jake's class, who had to go to the nurse's office in the 4th grade with a cricket up his nose.
- "The Doppelganger Gang" (first appearance)
- "The Rotwood Files"
- "Siren Says"
- "Magic Enemy #1"
- "Being Human" (final appearance)
- "The Hong Kong Longs" (end credits)