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Sonny Munroe
Allison "Sonny" Munroe [1] (Demi Lovato) is the newest cast member of the sketch comedy TV show So Random!, hailing from Appleton, Wisconsin. As a child, she disliked her nickname, but now thinks it suits her.
Sonny is usually goofy and can be a bit childish, and admits to doing things that may seem strange to others. Friendly, sweet, and caring toward those around her, she is known as the nice girl of the group and does her best to help other people with their problems, though her meddling often creates more problems than it solves. 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. 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) is a veteran actress and the longest-running So Random! cast member. Tawni thinks very highly of herself due to her celebrity status, and is very quick to get upset if things do not go her way. In the beginning, Tawni is jealous of Sonny, to the point of stealing all of Sonny's fan mail, but eventually comes to admire and befriend her. As a childhood, she was homeschooled by her strict mother Tammy, who is also her manager.
Tawni is the only one who initially knows about Sonny and Chad's mutual feelings for each other, but never mentions it to anyone. As with the rest of the So Random! cast, she disapproves when Sonny and Chad cement their relationship. In later seasons, Tawni becomes a kinder and more generous person, going out of her way to do favors for Sonny and offer her advice and comfort in her times of need.
Chad Dylan Cooper
Chad Dylan Cooper (Sterling Knight) is the star of popular drama series Mackenzie Falls. His attractiveness, talent, and charisma have earned him a devoted fanbase of adoring teenage girls, though in actuality, he is a bratty egomaniac. He has been the arch-rival of the So Random! cast ever since he mocked their show during his acceptance speech at an awards show, though he quickly develops an admiration for and attraction to Sonny upon meeting her, and later becomes her boyfriend in season 2. Despite his usual selfish and childish behavior, he is shown to be capable of kindness, especially toward Sonny. His relationship with Sonny also helps him develop a better relationship with the cast of So Random!.
In "My Two Chads", Sonny breaks up with Chad after learning that he has sent his doppelganger, a stunt double named Chaz Milton Looper, on dates with her that he deems dangerous. They get back together at the end of the episode when Chad overcomes his fear of and inability to ride a bike in order to apologize to her. In "Sonny with a Choice," So Random! wins the Tween Choice Awards for Best Tween Show, beating Mackenzie Falls. Distraught at losing the category for the first time in his career, Chad orders a recount of the votes (revealing Mackenzie Falls to be the true winner). Disgusted by Chad's inability to put others before himself and unwillingness to share his spotlight, Sonny breaks up with him for good; however, in "New Girl", it is revealed that he still has feelings for her, and implied that those feelings are mutual. Chad later joins So Random! after Sonny leaves the show, though still simultaneously stars in Mackenzie Falls.
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.
