|Cartoon debut||"D.W. Thinks Big"|
|Voiced by||Arthur Holden|
Jessica, Richard, and Cora stayed the night at Arthur's House to attend Aunt Lucy's wedding the next day. D.W. tries to help Richard by giving him some more shaving cream but she accidentally squirts it on his pants, making Richard mad and he shoos D.W. out the door. He later takes a picture of Cora wearing her flower girl dress and crown.
He looks like a taller version of his nephew Arthur and wears glasses kinda similar to his. He is similar to Technician.