Don Knotts (July 21, 1924 – February 24, 2006) was an Emmy-winning American comedic actor best known for his roles as Deputy Barney Fife on The Andy Griffith Show and landlord Ralph Furley on Three's Company. Knotts also played comedic roles in many movies throughout his career.
He is voiced by Seth MacFarlane.
Knotts appeared in "Petergeist" in a trailer for the fictitious Disney film, Too Many Ostriches, referring to his many Disney films aimed at children. In the trailer he is seen complaining about the number of ostriches with him in the scene.
In "The Tan Aquatic with Steve Zissou", Knotts appears as Mr. Furley, walking in on Brian and Stewie Griffin in what appears to be a compromising position. To Furley, Brian is ejaculating on Stewie's face, though he is actually helping him applying suntan lotion due to severe burns.
Mr. Furley makes another appearance in "Jerome Is the New Black", complaining about Jerome, a black man who is temporarily living with the Griffins. Peter sharply tells him to "go back to being dead."
In the DVD commentary for "Jerome Is the New Black", John Viener revealed that Don Knotts originally came in to record for himself in a previous episode, but was later replaced by Seth MacFarlane because, "he wasn't Don Knotts-y enough."