The puppet character is known for his Cockney speech, which he would often hypercorrect by adding non-standard aitches in an attempt to imitate prestigious English. He is also remembered for his frequent use of the expression "Yes, M'Lady" in acknowledging Penelope's instructions. Commentators Jim Sangster and Paul Condon write that the character's "adenoidal" delivery of this line "became synonymous with the show." They also describe Penelope and Parker as the "best characters in the Anderson collection", stating that the duo "managed to steal every episode they appeared in."