Question: who plays mr wilson in dennis the menace?
Answer: Joseph Sherrard Kearns

Joseph Sherrard Kearns ( February 12 , 1907 -- February 17 , 1962 ) was an American actor , who is best remembered for his role as George Wilson ( '' Mr. Wilson '' ) in the CBS television series Dennis the Menace from 1959 until his death in 1962 , and for providing the voice of the Doorknob in the animated Disney film , Alice in Wonderland .