Jeffrey is a swarthy man with black hair introduced in Grumbles Gets Gone. He and Allen are hand-holding roommates who spot Grumbles shapeshifted into a couch and agree the couch would go well in their new place.
They return in Abby's Track and Field Day. Here he refers to Bozzly by name despite it not being used in the episode, indicating he remembers Bozzly from earlier.
Jeffrey is a dark-skinned boy with black hair and green eyes. He wears a green top, khaki pants, and dark gray shoes.