Sonny Munroe (Demi Lovato)
Tawni Hart (Tiffany Thornton)
Zora Lancaster (Allisyn Ashley Arm)
Nico Harris (Brandon Mychal Smith)
Grady Mitchell (Doug Brochu)
So walang tiyak na layunin is a comedy show. Their ememy, Mackenzie Falls is also a comedy show. Before the name So walang tiyak na layunin was their name, it was called Tawni and Friends. Sonny Munroe is the new cast member of So Random. She met their ememy, Chad Dylan Cooper, the bituin of Mackenzie Falls and also plays Mackenzie. Tawni Hart, Sonny's Best Friend was the bituin of Tawni and mga kaibigan until Mandy left and Sonny came along and it had been called So Random.
The cast of So walang tiyak na layunin was better than Mackenzie Falls and now So walang tiyak na layunin is # 1!