OotP descriptions of the marauders era cast
"James's eyes were hazel, his nose was slightly longer than Harry's [...] but they had the same thin face [...]; James's hair stuck up at the back"
"James yawned hugely and rumpled up his hair"
"James, who was now doodling on a bit of scrap parchment. He had drawn a snitch and was now tracing the letters 'L.E'."
""How thick are you, Wormtail?" Said James impatiently."
"His reflexes were excellent."
"James seemed to be enjoying the attention"
"An arrogant, bullying toerag" —Lily
"Sirius was lounging in his chair at his ease, tilting it back on two legs. He was very good-looking; his dark hair fell into his eyes with a sort of casual elegance."
""Well I thought that paper was a piece of cake," he heard Sirius say. "I'll be surprised if I don't get 'Outstanding' on it at least.""
"Sirius stared around at the students [...] looking rather haughty and bored, but very handsomely so."
""I'm bored," said Sirius. "Wish it was the full moon.""
"He looked rather pale and peaky [...] and was absorbed in the exam: as he reread his answers, he scratched his chin with the end of his quill, frowning slightly."
""Think I did," said Lupin seriously [...] "One: he's sitting on my chair. Two: he's wearing my clothes. Three" his name's Remus Lupin.""
""You might," said Lupin darkly from behind his book"
"Many of the surrounding students laughed [...] but Lupin, still apparently intent on his book, didn't."
"Wormtail looked anxious; he was chewing his fingernails, staring down at his paper, scuffing the ground with his toes."
"Wormtail watched [James] in awe."
"Every time James made a particularly difficult catch, Wormtail gasped and applauded."
"Wormtail was on his feet now, watching hungrily, edging around Lupin to get a clearer view."
"The group of laughing girls who had just left the great hall were sitting with their shoes and socks off, cooling their feet in the water."
"It was one of the girls from the lake edge. She had thick, dark red hair that fell to her shoulder, and startlingly green almond-shaped eyes"
""You think you're funny," she said coldly"
""I don't want you to make him apologise," Lily shouted, rounding on James. "You're just as bad as he is.""
"Snape-the-teenager had a stringy, pallid look about him, like a plant kept in the dark. His hair was lank and greasy and was flopping onto the table, his hooked nose barely half an inch from the surface of the parchment."
"Round-shouldered yet angular, he walked in a twitchy manner that recalled a spider, and his oily hair was jumping about his face."
"Snape let out a stream of mixed swear words and hexes."
"Snape was hanging upside down in the air, his robes falling over his head to reveal skinny, pallid legs and a pair of greying underpants."
""I don't need help from a filthy little Mud blood like her!""