By: BBC News/Reuters
Last week a man accused him of having sex with him when he was a teenager, which he denied. The next day the man recanted the charge. A lawsuit by a second accuser has been filed, according to US lawyer Cecil Singleton.
Sesame Street says the controversy surrounding his personal life was "a distraction that none of us want".
Kevin Clash, 52, created the voice and persona for Elmo in the 1980s. The character has since become one of Sesame Street's most popular. Kevin Clash was given a leave of absence from the children's show last week.
'Sad day' A Sesame Street statement said: "Kevin Clash has helped us achieve a mission for 28 years and none of us, especially Kevin, want anything to divert our attention from our focus on serving as a leading educational organisation.
"The controversy surrounding Kevin's personal life has become a distraction that no-one wants, and he has concluded that he can no longer be effective in his job and has resigned from Sesame Street.
"This is a sad day for Sesame Street."
Kevin Clash did not deny the original relationship, but said it happened after the young man was an adult.
"I am relieved that this painful allegation has been put to rest," he said in a statement. "I will not discuss it further."
Sesame Street producers defended Kevin Clash last week but said he had shown "poor judgement" in breaking company policy on using the internet.
Mr Clash was the subject of a documentary Being Elmo: A Puppeteer's Journey last year and has also won several Daytime Emmy awards for his work on Sesame Street.
Jude's Korean adventures
Alcohol in South Korea
All bars and local night establishments are filled to the brim with things you have seen in all other places like Jack Daniels and Jagermeister.
However you may spy a little green bottle with Korean writing on it and you may ask what is that? It's called Soju, my friends or 소주 for the Hangil inclined (Korean Language).
Soju is a spirit primarily made from rice, barley, potatoes or tapioca and has an average alcohol content of 20% ABV however there are some brands of Andong Soju that are upward of 45% ABV.
None the less, they will both get the job done. Soju has a taste very similar to vodka but it is slightly sweeter and easier to consume by itself.
Now we get to the matter of cost and availability; however rest assured the answer will be qiute positive. Soju is available all over South Korea from the local convenience store for 1,000 Won = roughly $1 or in a restaurant for 3,000 Won =$3. So these adult treats certainly won't set you back any considerable amount.
It alco mixes quite well with beer, cider, and energy drinks. Soju has been around since the 13th century and shows no signs of going anywhere anytime soon. So when you get the chance come on down to the Republic of South Korea and have a shot of deliciousness.