<Li> Mac (voiced by Cameron Clarke): A male blue greyhound with an inflated sense of self - importance, who shifts between aloofness and wanting to be part of Clifford, Cleo, and T - Bone's circle of friends . Mac competes in dog shows . He can be vain, bossy and selfish . However, he appears to be devoted to his owner Jetta . It is revealed in a few episodes that his name is short for Machiavelli . </Li> <Ul> <Li> Emily Elizabeth Howard (voiced by Grey DeLisle; Joanna Ruiz in the British version): Clifford's eight - year - old owner . A friendly, curious, and helpful girl . The best skater on the island, and also very good at soccer . Emily Elizabeth adopted Clifford when he was a very small puppy, when her parents gave him to her on her 6th birthday . Emily's love apparently caused Clifford to grow enormous, thus starting their new lives on Birdwell Island . Just like Clifford, she rarely has episodes about her and ends up being the voice of reason . Emily was named for creator Norman Bridwell's daughter and based on the imaginary adventures of Bridwell's wife . <Ul> <Li> Caroline Howard (also voiced by Grey DeLisle): Emily Elizabeth's mom </Li> <Li> Mark Howard (voiced by Cameron Clarke): Emily Elizabeth's dad </Li> </Ul> </Li> <Li> Charley (voiced by Gary LeRoi Gray): Emily Elizabeth's best friend and the best soccer player on the Birdwell Birds (the school soccer team). He lives on a houseboat with his father, who owns a restaurant . <Ul> <Li> Samuel (voiced by Terrence C. Carson): Charley's father and the Jamaican owner of Samuel's Fish and Chips . He is a great storyteller and runs most of the pier . </Li> </Ul> </Li> <Li> Jetta Handover (voiced by Kath Soucie): Mac's owner . She is a wealthy, self - centered friend of Emily Elizabeth who is often oblivious to others' feelings . She is often shown leading parades and competing in talent shows as a majorette . Jetta often claims her accomplishments are bigger or better than others' and finds herself humbled when she aims too high to the point where she needs help . Her mother owns one of the island stores and seems somewhat oblivious to Jetta's behavior . She often appears to dislike Clifford, criticizing him for minor accidents caused by his size, but occasionally she will show that she really does like him . <Ul> <Li> Cosmo Handover (voiced by Debi Derryberry) is the infant brother of Jetta . He is first seen in the episode "And Baby Makes 4". </Li> </Ul> </Li> <Li> Vaz (voiced by Ulysses Cuadra): Somewhat clumsy and shy boy who is friends with Emily Elizabeth and Charley . </Li> <Li> Sheriff Lewis (voiced by Nick Jameson): T - Bone's owner . The island's sheriff and the soccer coach . He feeds T - Bone often, (explaining why T - Bone is overweight). <Ul> <Li> He had a best friend named Chief Wilson who moved away with T - Bone's best buddy, Hamburger . </Li> </Ul> </Li> <Li> Ms. Diller (voiced by Cree Summer): Cleo's owner . </Li> <Li> Horace Bleakman (voiced by Earl Boen) lives with his wife Violet . He is often grumpy and impatient about the noise and mess Clifford inadvertently causes, but he is still a good neighbor and helps Clifford and the others from time to time . </Li> <Li> Violet Bleakman (voiced by Edie McClurg) is the first neighbor of the Howards to introduce herself . She is a little more nice, calm, and patient than her cranky husband Horace . </Li> <Li> Pedro and Victor (both voiced by Tony Plana) are dock workers who help unload the boat in "Welcome to Birdwell Island". </Li> </Ul> <Li> Emily Elizabeth Howard (voiced by Grey DeLisle; Joanna Ruiz in the British version): Clifford's eight - year - old owner . A friendly, curious, and helpful girl . The best skater on the island, and also very good at soccer . Emily Elizabeth adopted Clifford when he was a very small puppy, when her parents gave him to her on her 6th birthday . Emily's love apparently caused Clifford to grow enormous, thus starting their new lives on Birdwell Island . Just like Clifford, she rarely has episodes about her and ends up being the voice of reason . Emily was named for creator Norman Bridwell's daughter and based on the imaginary adventures of Bridwell's wife . <Ul> <Li> Caroline Howard (also voiced by Grey DeLisle): Emily Elizabeth's mom </Li> <Li> Mark Howard (voiced by Cameron Clarke): Emily Elizabeth's dad </Li> </Ul> </Li> <Ul> <Li> Caroline Howard (also voiced by Grey DeLisle): Emily Elizabeth's mom </Li> <Li> Mark Howard (voiced by Cameron Clarke): Emily Elizabeth's dad </Li> </Ul>

Who does the voice of emily elizabeth on clifford