These are the characters did not speak.
“Miles Cleffougall is minor, one time character. He is a unseened character who is the man who...Miles Cleffougall
“Plank McDuff is an news reporter in PC City Supermarket. He is an unseened news reporter.Plank McDuff
“Chester is a yellow dog that was seen in some episodes and also has a owner named "John".Chester (dog)
“Regina Clefferd is a aunt of Clifford. She is the greatest wife who is seen in clifford's art...Regina Clefferd