Jillian Jean

“Um...is that thing tame?" Frank said.
The horse whinnied angrily.
"I don't think so," Percy guessed. "He just said, 'I will trample you to death, silly Chinese Canadian baby man'.”
― Rick Riordan, The Son of Neptune

“Frank didn’t drop you on purpose,” she said. “He’s not like that. He’s just a little clumsy sometimes.”

“Oops,” Leo said, in his best Frank Zhang voice. “Dropped Leo into a squad of enemy soldiers. Dang it!”
― Rick Riordan, The Mark of Athena

“He had no idea where the stereotype of dumb giggly blondes came from. Ever since he'd met Annabeth at the Grand Canyon last winter,when she'd marched toward him with that Give me Percy Jackson or I’ll kill you expression, Leo had thought of blondes as much too smart and much too dangerous.”
― Rick Riordan, The Mark of Athena

“He turned to Frank who was trying to pull his fingers out of the Chinese handcuffs…
“Okay,” Frank relented. “Sure.” He frowned at his fingers, trying to pull them out of the trap. “Uh, how do you—”
Leo chuckled. “Man, you’ve never seen those before? There’s a simple trick to getting out.”
Frank tugged again with no luck. Even Hazel was trying not to laugh.
Frank grimaced with concentration. Suddenly, he disappeared. On the deck where he’d been standing, a green iguana crouched next to an empty set of Chinese handcuffs.
“Well done, Frank Zhang,” Leo said dryly, doing his impression of Chiron the centaur. “That is exactly how people beat Chinese handcuffs. They turn into iguanas.”
― Rick Riordan, The Mark of Athena