Sonny Munroe

Allison "Sonny" Munroe^[1] (Demi Lovato). The newest member of comedy sketch TV show So Random!, She is from Appleton, Wisconsin. "Sonny" is Allison's nickname. Sonny used to dislike her nickname when she was little, but now she thinks it suits her.

Sonny is usually goofy and a bit childish, often admitting to do things that may seem strange to others. Friendly, sweet, and caring towards those around her, she is known as the nice girl of the group and does her best to help other people with their problems and achieve her dreams, but earns mixed results often due to some situations involving her meddling problems. She is shown to be talented at singing as well as playing the piano and guitar.

Sonny develops an on-and-off rivalry with Chad Dylan Cooper, and they become a couple in season 2 after Chad asks her out. She later breaks up with him due to his selfishness. In the series finale, it is hinted that Sonny still has feelings for him, though the fate of their relationship is left uncertain. Sonny is absent from the spinoff series So Random! due to Demi Lovato leaving the cast for health reasons; Sonny's absence is never explained.

Tawni Hart

Tawni Hart (Tiffany Thornton). Tawni is obsessed with fashion, pink, and herself. She becomes upset if she does not get her way. In the beginning, Tawni was openly jealous of Sonny to the point that she committed mail fraud by stealing all of Sonny's fan mail, but later grew more accepting of her as a member of the show.

Tawni is probably the only person who initially knew about Sonny and Chad's mutual feelings for each other, but never mentioned it to anybody. Tawni has a secret - she likes Sonny. She is jealous of Sonny's fans. Despite their rocky beginnings, she has since begun to care about Sonny as a friend and eventually as a best friend.

She is often seen giving her advice and is shown to be nicer than before, such as the instance of driving Sonny all the way back to Wisconsin in "Sonny with a Secret", but she tells Sonny to do projects for her, shown in "Falling for the Falls (Part 1)". Also, she still doesn't like it that Sonny's boyfriend is Chad, as do all of the So Random! cast. She has been on So Random! for five years. She says that she was homeschooled, and that her mother Tammy (also her manager) was very strict.

Chad Dylan Cooper

Chad Dylan Cooper (Sterling Knight). He is the teen heart-throb of Tween Weekly and Mackenzie Falls. He is the arch-rival of Sonny and the cast of So Random! early in the series, as well as Sonny's love/hate interest as developed later. He seems to have liked Sonny since the beginning of the show, and in one episode tries to force her to kiss him, before they were dating.

He is a bratty egomaniac and thinks that he the "greatest actor of his generation", and can be seen as effeminate in his obsession with his own appearance. Despite this selfish and childish behavior, he has moments where he shows he is kind and deep, especially when he's around Sonny. He became more friendly towards the cast of So Random! because of his feelings towards Sonny, and later, he eventually falls in love with her and starts dating her. However, in "My Two Chads", it is revealed that Chad has a stunt double named Chaz, who he has to go on dates with Sonny that he deems dangerous. When Sonny finds out about this, she dumps him, but they get back together at the end.

In "Sonny with a Choice", when he discovers that So Random! won the Tween Choice Awards, his ego and jealousy get the better of him, leading him to recount the votes so that Mackenzie Falls wins instead, which he later tells Sonny. Sonny is disgusted at his inability to put others before himself, causing them to break up for good. In "New Girl", it is revealed that he still has feelings for Sonny. Sonny writes a song about him and hums it at the end, hinting that she still has feelings for him as well. He later joins So Random! when Sonny leaves the show. It is known he is still in Mackenzie Falls even after he joins So Random!

Nico Harris

Nico Harris (Brandon Mychal Smith). One of the primary cast members of So Random!, Nico is Grady's best friend and they always do pranks and wacky things together. He and Grady attempt many pranks but they often fail because (in Tawni's words) they are "full of loud music, bad choreography and things being thrown" as they often copy the movies. The two are shown to be a little immature. He always comes up with ideas that later turn crazy.

Nico seems to think he's quite the womanizer, he hardly ever succeeds in getting dates. He also has a crush on Mackenzie Falls star Penelope, but she constantly turns him down, and not very nicely. He and Grady manage to make a body-spray that attracts girls but in the wrong way. He was on a one-man show called NICO.

His dad is a lawyer. He also shares a birthday with Grady. At the very beginning of Sonny with a Chance, he had a slight crush on Sonny but he grows to only like her as a friend. Whenever he has a project, he tries to find a way to get Sonny to do it for him.

Nico is absent for 2 episodes: "Sonny: So Far" (but appeared in the flashbacks) and "Sonny with a Grant".

Grady Mitchell

Grady Mitchell (Doug Brochu). A cast member of So Random!, Grady is best friends with Nico. They can be shown to be a little immature. He is also wacky and full of silliness and is always eager to eat. Together, he and Nico hatch plans such as making money by selling Tawni's trash on the Internet or getting girls by creating an extremely attractive cologne. He has also been shown to believe in the existence of fictional worlds such as Narnia and Pandora.

On the Disney Channel site, it says that he is from Orlando, Florida. His father was in the military, and he has a brother, Grant, who constantly teases him for having no girlfriend. He also shares a birthday with Nico. Grady is shown to try to find a way to get Sonny to do his project homework, like Nico and Tawni. In the last episode of the series, he manages to impress Sonny's new friend, Mel. The finale ends with Mel admitting to herself she loves him.

Grady is absent for 1 episode "Sonny: So Far" (but appeared in the flashbacks). He was present for all episodes in season 2.

Zora Lancaster

Zora Lancaster (Allisyn Ashley Arm). The youngest cast member of So Random!. She was 11 in season 1 and 12 in season 2. Zora has a genius IQ of 155 and is the smartest member of the group. She is known to be "the weird one" because Zora has a weird personality and always seems to be up to something suspicious and weird. Sometimes, she is shown to be a little dangerous as seen in the title sequence to be driving a monster machine. She is also a prankster. She hates Dakota Condor and insists that she's "Evil". She also is comfortable in small spaces.

Zora, Tawni, and Sonny all share one room but Zora prefers to hide up in the air vent and the sarcophagus in the prop house, eavesdropping on private conversations. She tends to wear extremely bright, unique clothes. She has a short temper and when provoked will often try to physically attack the other person to express her anger at the other person. In season two, she is shown to become more mature and a little less weird.

Zora is absent for 20 episodes, and she appeared in 26 of 46 episodes.