
Lynn, an exceptionally bright student, realizes the potential of her exam-helping scheme and decides to expand it into a large-scale cheating operation. Driven by ambition, she and her friends embark on a lucrative business, transforming exam answers into a surprising amount of money. The operation quickly becomes more complex, testing their skills and pushing them to the limit.
Does Bad Genius have end credit scenes?
No!
Bad Genius does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of Bad Genius, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Thaneth Warakulnukroh
Lynn's Father

David Bloom
STIC Officer

Chutimon Chuengcharoensukying
Lynn

Sahajak Boonthanakit
Pat's Father

Ego Mikitas
Test Centre Supervisor

Sarinrat Thomas
Headmistress

Suquan Bulakul
Female News Anchor (voice)

Nattawut Poonpiriya

Markus Waldow
Test Centre Supervisor's Assistant

Chanon Santinatornkul
Bank

Panot Sukhjitr
Hoodlum 1

David Gray
Facetime Father

Nopawat Likitwong
Exam Proctor

Valentin Velkov
Confession Officer 2

Eisaya Hosuwan
Grace

Kanjana Vinaipanid
Pat's Mother

Valerie Bentson
STIC Officer

Sasidis Sasisakulporn
AV Officer

Teeradon Supapunpinyo
Pat

Theerasak Udomsub
STIC Client 5

Salaithip Charubhumi
University Professor

Pasin Kuansataporn
Tong

Yuthapong Varanukrohchoke
Mr. Sophon

Vittawin Veeravidhayanant
Pat's Friend 1

Suwijak Mahatthanachotwanich
Pat's Friend 2

Narwin Rathlertkarn
Pat's Friend 3

Thanawat Sutat Na Ayutthaya
Pat's Friend 4

Thanachart Phinyocheep
Pat's Friend 5

Pitchatorn Santinatornkul
STIC Client 1

Thanwalai Pornjirattikal
STIC Client 2

Natchanok Kamonrattananan
STIC Client 3

Thanyarat Naovaratpong
STIC Client 4

Sivapee Mapaisankit
STIC Client 6

Bundit Saejiw
STIC Client 7

Kobrsak Noomnoi
Teen Genius Host

Uraiwan Puvichitsutin
Bank's Mother

Somchai Ruedikunrangsi
Bank's Father

Boonyarich Baijiam
Hoodlum 2

Laluna Nitze
Facetime Daughter

Rod Mabin
Australian News Anchor

Neil Hayes
STIC Officer

Margaret Tuner
STIC Officer

Amie Cicciarello
STIC Officer

Taffy Marufu
STIC Invigilator

Arisa Hansura
Embassy Consul

Napha Sinxayvoravong
STIC Thai Student 1

Arisa Ogata
STIC Thai Student 2

Suttida Wongpramoth
STIC Thai Student 3

Connor Malanos
Busker

Heather Prowse
Old Lady at the Station

Benjamin Nitze
Confession Officer 1

Shanya Jiwachotkamjorn
Lynn's Left Hand Talent

Wisanlaya Kuekoolkwamsook
Lynn's Hand Talent
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Challenge your knowledge of Bad Genius with this fun and interactive movie quiz. Test yourself on key plot points, iconic characters, hidden details, and memorable moments to see how well you really know the film.
What is the name of the academically talented student who initiates the cheating operation?
Lynn
Grace
Bank
Pat
Show hint
Read the complete plot summary of Bad Genius, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
Lynn, a top secondary school student living with her Lynn’s father, earns a scholarship to a prestigious school for her academic achievements. There, she befriends the good-natured but academically challenged Grace. The two quickly form a fragile pact: Lynn starts helping Grace cheat in exams after discovering that their teacher has been leaking questions during private tutoring sessions. This uneasy alliance deepens when Grace’s wealthy boyfriend, Pat, offers payment to Lynn to extend the cheating to him and his circle. At first Lynn balks, but she learns that the school has been charging her father extra fees despite her scholarship, a detail that hits close to home since he works as a teacher with a modest income. Motivated by a mix of resentment and necessity, she devises a covert system of hand signals, inspired by certain piano pieces, to transmit correct answers during tests, and soon her client base begins to grow.
The scheme, however, does not stay hidden for long. It is uncovered when another top student, Bank, unintentionally exposes the cheating. The fallout is swift and harsh: Lynn is reprimanded by her father and the school, her scholarship is suspended, and her chances to apply for an international scholarship are revoked. The burden of consequences weighs heavily on her, yet the lure of quick money and a bigger cover story keeps the temptation alive. Nevertheless, the personal cost becomes clear: Lynn’s integrity is rubbed raw as she watches her carefully built future start to crumble under pressure.
Still, the opportunity to escape the sting of consequences pulls Lynn back toward cheating, this time targeting the STIC—an international standardised test used for university admissions—an enterprise that could yield millions of baht. She agrees to work with Pat and Grace, but insists that Bank must be involved, reasoning that he would never embrace dishonesty on his own. Bank, a young man from a poorer background who stakes his future on the same university scholarship, faces his own crisis when he is attacked by thugs and misses the critical exam. Reluctantly, he agrees to join Lynn, and together they begin preparing for a high-stakes, globe-spanning final operation: they plan to fly to Australia to gain a head start on the exams, with the intention of sending answers back to Pat and Grace for distribution to their clients back home.
Tensions rise on the eve of departure when Pat reveals the truth he had ordered the attack on Bank to force his compliance. Enraged, Bank confronts Pat and walks away, leaving Lynn torn by the revelation. Bank later returns to press Lynn to finish what she started, and Lynn confronts a moment of reckoning about where her choices have led her.
In Sydney, the plan unfolds with meticulous precision at first. Lynn and Bank complete the initial sections, but anxiety gnaws at Bank, and he falters under pressure, forcing Lynn to clutch the final section from memory. She manages to bluff her way through a desperate, last-minute feint by pretending to be ill and exiting the test center, where Bank’s denial of knowledge saves her, at least for the moment. Back home, the scheme has been a resounding, if morally hollow, success. Yet Lynn, broken by the experience, rejects the payout and refuses to be part of a broader exploitation.
Months pass and Bank, having invested his share into revamping his mother’s laundry business, reaches out with a new proposal: start a wider scheme targeting national exams like the GAT/PAT. Lynn declines, choosing to walk away from illicit gains. Bank responds with a threat to expose the entire operation, a warning that jolts Lynn into action. She decides to come clean and confesses to her father, who supports her decision and helps her submit a formal confession to the STIC organization.
The story thus follows a young woman caught between ambition and conscience, tracing how her initial brilliance becomes a liability when moral lines blur. It is a journey through pressure, loyalty, and accountability, culminating in a courageous choice to own up to one’s actions and seek redemption, even when the cost is high and the path forward uncertain.
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