Mr. Biggle is the biological father of Henrietta Biggle, the adoptive father of Bradley Biggle and husband of Mrs. Biggle. He only appeared in "Goth Kids 3: Dawn of the Posers", where he and Mrs. Biggle sent Henrietta to a camp for troubled kids.
Mr. Biggle is balding with brown hair on the sides and mustache with eye glasses. His pants are blue and his shirt is an aqua blue. His sweater is a darker blue with white trim.
Bradley is his adopted son. Nothing is known about their relationship, although Bradley doesn't appear in any of the family portraits the Biggle family has in their living room.
Henrietta is his biological daughter. Mr. Biggle is somewhat stricter with her than Mrs. Biggle.