Mon was a stern and stately individual as well as an ardent democrat and opposed Chancellor Palpatine's amassing of executive power during the Clone Wars. She contrasted greatly in her beliefs with those of Separatists who wished to leave the Republic, believing instead, in loyalty to the Republic and the preservation of its independance and democracy. It is this opposition to authoritarianism that led Mon to seek help from the Rebel Alliance. She promoted peace during the Clone Wars, but was still willing to fight to restore democracy to the galaxy. Her ideals led her to become the first Chancellor of the New Republic, where she pushed to avoid the mistakes that the Old Republic had made during the Clone Wars. Though strong executive powers were granted to her - she vehemently declined - believing them to be destructive to the democratic process.
Mon's devotion to her ideals proved difficult at times. After the Galactic Empire's massacre on Kashyyyk, she believed diplomacy to be dead and considered becoming a fighter pilot in the war against the Empire - but she later learned that she provided more value to the Rebellion as its leader than as a soldier. This was supproted by the revelation that the Emperor intended to destroy Chandrila with the second Death Star as a means of silencing her - and in this threat lay proof of the effect of her antagonism in that Palpatine was willing to destroy an entire world just to eliminate the voice of opposition from one person. Throughout the Empire's reign, many Chandrilans begged her to cease her opposition to the Emperor for fear of Imperial reprisal against Chandrila - and Mon wondered if a destructive fate for Chandrila would be her fault. She refused to allow herself to be ruled by fear, tormented by the burden of acknowledging that if fear dictated her actions, she might as well surrender to the Empire.
As a Senator of the Galactic Republic, Mon was wary of the increasing amount of power that Supreme Chancellor Palpatine was gathering, and along with 1999 other Senators, signed a petition calling for him to relinquish his emergency powers as the Clone Wars neared their end. Realizing that the Senate was quickly losing its last vestiges of political influence, a meeting was held to discuss what options were available if any were to oppose the Supreme Chancellor. After Palpatine reformed the Republic into the Galactic Empire, Mon continued to oppose his policies and did not hide her anger or dismay from him. She went underground and began openly resisting the Empire when its outrages became too difficult to ignore. Mon considered every breath she took to be in rebellion to the Empire.
She was not comfortable with the idea of a "secret council" as it "reeked of the Empire", in her own words - but with the Rebel Alliance on its last legs soon after the Battle of Yavin - Mon was forced to form one with Leia Organa and tasked her with a new protocol.
Star Wars: Revenge of the Sith
Mon was seen (only in a deleted scene) during a private meeting between senators Padmé Amidala, Bail Organa, Chi Eekway Papanoida, Fang Zar, Giddean Danu, Terr Taneel, and herself in Bail's office to discuss the developments, Padmé wondered if the chancellor would dismantle the Senate, to which Mon said there was little use in disbanding it, in her view, the Senate barely existed due to its diminished powers, the group refused to allow a millennium of democracy to end without a fight.
Mon is later seen (only in another deleted scene) in Padmé's apartment, with Bail, Chi Eekway, Fang, Giddean, and senator Bana Breemu, when Padmé suggested they bring in the Jedi, Mon felt that was too extreme, and refused.
Star Wars: Return of the Jedi
Mon appears in the movie, Rogue One. She is portrayed by Genevieve O'Reilly, who was originally cast to portray the character in Star Wars: Revenge of the Sith.
Mon appeared as as a recurring character in Star Wars: The Clone Wars. In the series she was voiced by Kath Soucie.
Mon appeared in the Star Wars Rebels episode "Secret Cargo", voiced by Genevieve O'Reilly.
Friends and Allies
Mon and Padmé respected each other greatly. After the Delegation of the two thousand was formed, Mon recruited Padmé to be it's spokewoman. During one Delegation meeting, Padmé reminded her that Palpatine had a supermajority in the Senate on his side and urged that the Jedi be brought in but Mon refused stating it to be too extreme.
Mon and Bail were both loyalists who were dedicated to the Galactic Republic. After Chancellor Palpatine declared himself Emperor, both voted for the Empire at Padmé's urging and dedicated themselves to overthrowing the self-made Emperor. Mon disagreed with taking the patient route Padmé urged them to take and urged Bail to lead an open opposition against the Empire. When the Rebel Network Bail and Ahsoka Tano created was reorganized into the Rebel Alliance by the Corellian Treaty, Mon became it's leader and assumed leadership of the rebellion that the Network started.
Mon initally respected Surpreme Chancellor Palpatine for his effective leadership. However, she became alarmed by his increasingly dictatorial authority and along with Bail Organa formed the Delagation of the two thousand to demand an end to the Clone Wars and an end to his amendments to the Galactic Constitution. However, the attempt backfired; the Chancellor declared himself emperor and had every member of the Delegation except for Bail, Mon (since they didn't actually sign the Petition of the two thousand) and Padmé branded traitors and arrested as enemies of the state. At Bail's urging, Mon voted for the Empire and dedicated her life to restoring the Republic and democracy the new Emperor destroyed.
After the Rebel Network, Bail and Ahsoka Tano established was reorganized into the Rebel Alliance by the Corellian Treaty, Mon became it's leader and issued the Declaration of the Rebellion calling for a revolution against the Empire to restore the Republic. When she learned that the Emperor would be onboard the under-constuction Death Star II, Mon approved plans to attack it due to seeing it as a way to finally overthrow him. After the Alliance won the Battle of Endor, Mon announced the birth of the New Republic and became it's first Chancellor and dedicated her years in office to ensuring that the New Republic never fell prey to the same incredible corruption and dangerous complacency that made Palpatine's rise to power possible.
- Mon Mothma appears briefly in Star Tours: The Adventures Continue at the end of the Geonosis segment when the StarSpeeder 1000 flies into the Rebel Alliance flagship docking bay. She is there with other Rebel Leaders.
- The actress who plays her in the ride's finale, Imagineer VFX producer Marianne McLean, wore the actual costume Caroline Blakiston adorned in Return of the Jedi.
- Genevieve O'Reilly was originally cast as Mon Mothma in Revenge of the Sith. However, most of her scenes were cut from the final film.
- O'Reilly was chosen to portray the role due to her resemblance to Caroline Blakiston. Before filming, she studied Blakiston's performance, hoping to capture the character's voice and mannerisms.
- She reprised her role in Rogue One.