<Li> Gladys Murphy (Wanda Sykes): A boisterous black woman who makes embarrassing announcements, generally of a scatological or sexual nature . Her many children do things like gluing her buttocks to the toilet and stealing money from a malfunctioning bank machine . </Li> <Li> Niles Standish (Tony Barbieri): The British Earl of Yankerville, he is a rich and eccentric middle - aged pervert with homosexual tendencies . He frequently calls various services and asks for their price, then orders them to "double it ." (Once even confusing someone by telling them to "cut it in half, and double it!"). </Li> <Li> Special Ed (Jim Florentine): Bobby Fletcher's mentally challenged younger cousin who constantly repeats himself, makes random comments, and shouts his catchphrase "Yay!" until the other caller gets frustrated . He makes a cameo in one of Bobby's prank calls, the "Let Me Put My Brother on the Phone" call . In two prank calls of his own (one to a movie theater and one to a video store), Ed reveals that his favorite movie is Air Bud . In the video - store call, he works in several references to The Shining . </Li> <Li> Dick Birchum (Adam Carolla): A psychotic Vietnam War veteran whose hobbies include carpentry, Shotokan karate, spying on women in their beds or bathrooms by drilling holes or a hidden camera, and gun ownership . He has a 600 - pound wife and conjoined twin daughters . He lost part of his right leg in the war and 3 right - hand fingers in a carpentry accident . He frequently refers to his time in Vietnam and "smoking hash out of a human skull ." </Li>

Who does the voice of special ed on crank yankers