Mr. Barkis
The carrier driver who drives David and Peggotty to Yarmouth near the beginning of the novel and who also drives David to Yarmouth to be sent to boarding school. Mr. Barkis takes a fancy to Peggotty after trying one of the cakes she made for David's journey to London. He tells David to write to Peggotty the message, "Barkis is willin'," which sparks the relationship between the two.