Charlotte "Charlie" is a psychological consultant who’s intelligent, cheerful, and determined. Betrayed by her ex-fiancé and stepsister, she marries Nathan to secure her late mother's company. Their relationship begins with misunderstandings, but she gradually falls for him, unaware that he’s actually her husband.

A wealthy, proud billionaire with a guarded heart, suffering from panic attacks. He meets Charlotte in a bar, where she mistakenly assumes he’s an escort, leading to a heated, playful confrontation. Despite his sarcastic facade, he secretly cares for her and unknowingly buys her mother's company to support her.

Nathan's witty, funny, and loyal best friend and assistant. He acts as Nathan’s “voice,” offering comic relief and sound advice. He’s dating Marie, Charlotte’s best friend, and they both support Charlotte and Nathan's romance.

Charlotte’s best friend and business partner. A bold, smart, and fierce African-American woman who is fiercely loyal to Charlotte. She stands by her, ready to protect and support her against their shared enemies.