Dale is one of the secret characters that can be unlocked in the Mickey & Friends section of Disney Crossy Road! In order to unlock him, all you have to do is unlock the 'Fab 5' set of characters. These characters include Mickey, Polka Dot Minnie, Donald, Goofy and Pluto. Once you unlock these characters (in no particular order) you will unlock Dale!
If you know how to unlock any other Disney Crossy Road Secret Characters, make sure to tell us in the comments below!