Theodore Read

Theodore, also known as "Theo," is Arthur, D.W., and Kate's great-grand uncle. He is the brother of Thora's father. He celebrates his 85th birthday in the special "The Rhythm and Roots of Arthur."

Physical appearance
Theo is an anthropomorphic aardvark with a dark brown complexion. He wears a gray button-down shirt with a bow-tie, a black hat with a red band, brown pants, and red suspenders. He has a gray mustache and thick gray eyebrows.