Young Jennette McCurdy
Credit: Youtube Lover
Jennette McCurdy had a gradual introduction to Nickelodeon by guest starring on Zoey 101 and True Jackson VP. After impressing Nickelodeon producer Dan Schneider with her performances, she was offered the role of Sam Puckett in iCarly, one of Nickelodeon’s most successful TV shows of all time. After 7 seasons, Sam then went on to co-star in Sam & Cat with Ariana Grande. The show seemed successful amongst viewers, but the series was ultimately canceled after one season.