Can you imagine Danny Tanner on Full House being played by anyone other than Bob Saget?
Well it almost happened. Another actor was originally cast as the famous TV dad, but he was recast and replaced with Bob after the pilot.
And that's not the only example of sitcom switcharoos — they happen a lot more than you think.
Typically before a sitcom becomes a full series, a pilot is shot first. While a show is in the pilot stages, several things might change, from actors who aren't quite gelling with the cast to even plot changes. As network executives and test audiences watch the pilot, they note several factors that might improve the show, and once those changes have been implemented, additional episodes are then ordered.
However, Full House's pilot situation was a little different. Producers already wanted Bob, but because of scheduling conflicts, the show cast John Posey instead. But after shooting the pilot, Bob's schedule cleared and the show gave John the boot.
Curious to see what other characters were originally played by someone else? Check out our gallery to see some of our favorite sitcom swicharoos.