Clifford

Clifford, also known as Clifford the Big Red Dog is the big red dog of Emily Elizabeth's and also the main protagonist of the show. He was voiced by Brent Titcomb in the 1988 series, and the late John Ritter in the PBS series that aired from 2000-2003. Clifford is the main character who's size is caused by the amount of love Emily Elizabeth gave him.

Personality
Clifford is a helpful, outgoing and a friendly dog. He will always help his buddies in their times of need and give them amazing advice. However, he can also can be gullible and naive and sometimes believes everything he is told.

Appearances
Clifford is a very big red dog, which sometimes he gets into trouble because of his size or is tempted into trouble by his friends and those he meets. His size, like giants in medieval legends, is inconsistent—he is often shown as being about 25' tall from paws to head, but can appear far larger. Emily Elizabeth gave him a huge amount of love, which caused his big size.

Trivia

 * Although John Ritter died in 2003, his voice can be heard as Clifford as late as 2004 because "Clifford's Really Big Movie" was released posthumously.
 * Clifford was given a prequel series "Clifford's Puppy Days" and it takes place before the Howard's move to Birdwell Island. In this series Clifford is played by Lara Jill Miller.

Clifford played as Gordon in Clifford the Big Red Dog/Catscratch
He is a manx cat

Clifford played as Spot in Clifford the Big Red Dog/Spot
He is a puppy

Clifford played as Fireman Sam in Clifford the Big Red Dog/Fireman Sam
He is a fireman

Clifford played as Woody Woodpecker in Clifford the Big Red Dog/Woody Woodpecker
He is a woodpecker