B.P. Richfield is a triceratops and Earl Sinclair's tyrannical field boss at the WESAYSO Development Corporation. Richfield is known for his fierce temper and tendency to eat those who quarrel with him (and also daughter Wendy Richfield's boyfriends as revealed in "Hungry for Love"). He seldom ventures outside of his trailer, overlooking the job site where Earl and his fellow tree pushers toil.