Dinnsdale is a ventriloquist dummy owned by Owen Garland. In "Space", Owen used Dinnsdale to express a darker side of himself, enabling himself to insult his peers without guilt. Eventually, he realised this was wrong and temporarily retired his act. In "Talent", Owen attempts to enter Dinnsdale into the Elmsmere Talent Show but is stopped by Mr. Bell.
Dinnsdale is a dummy with furry brown hair and thick black eyebrows. He has rosy cheeks and bright red lips, and is seen wearing a cloak. Owen claims that Dinnsdale's "cute" physical appearance is what allows him to be so rude.
Dinnsdale was introduced in Series 7 and has appeared in two episodes so far. It is unknown if he will return for Series 8.