What Happy Day's star turned down the plum film role of Danny Zuko in "Grease"?

More Questions:

How many zeroes are there in a trillion?

Sinologists study which country?

What Internet awards are always given posthumously, unless the recipient is sterile?

What hall-of-fame quarterback joined the Denver Broncos in 1983?

The island of Madeira belongs to which European country?

Lodgepole, Pinyon and Ponderosa are species of what plant?

What are scientists hoping to cause when they seed a cloud?

Which character did Kim Cattrall play on the TV show "Sex and the City"?

In seasons 12 and 13 of the TV show "Big Brother', what competitor is associated with "crybernating"?

What was the last name of Bill Murray’s character’s platoon Sergeant in the movie "Stripes"?

On the "Abbey Road" album cover, which member of the Beatles is on the far left?

On what island is the TV series "Wings" set?

What was the nickname of American frontiersman Christopher Houston Carson?

What branch of Christianity introduced the Advent calendar?

Who wrote the book "Computer Power and Human Reason"?