Could you imagine singing along to “Best of Both Worlds” without Miley Cyrus as Hannah Montana? How about watching High School Musical's Troy Bolton fall for Gabriella Montez and bring the Wildcats to victory without Zac Efron? Neither could M!
With Disney Channel pros auditioning for all the hottest roles, stars like Miley and Zac had to beat out some tough competition before finally snagging their life-changing parts!
Click through the gallery below to find out which stars almost played your favorite Disney characters! Tell us in the comments: Which celeb do you like better for the part?