A: George multiple times (often to Jerry)

Q: "Lou Gehrig's pants. Not a bad fit. Hey, you don't think that nerve disease of his was contagious, do you?"

A.THE BIG STEIN

Q. whats wrong with your face it looks like an catchers mitt

A: Jerry to Kramer.

Q: "Poor Pinkus, poor little Pinkus."

A: It was Kramer to himself.

Q: "Serenity now!"

A: Frank Costanza and George Constanza anytime they were stressed

Q: "No offense, Frank, but this holiday is a little dodatdoodatdoo...out there!"

A: Kramer to Frank.

Q: "Not that there's anything wrong with that."

A: Jerry & George to the NYU reporter Sharon

Q: "It's like I'm Neil Armstrong. I turn around for a sip of Tang and you jump out first."

A: George to Jerry?

Q: "Look away, I'm hideous."

Yep, it was George to Jerry when everyone but George saw his girlfriend naked first.

A: Kramer to Jerry

Q: "That's preposterous. How could I give you fleas?"

A: Newman to Jerry.

Q: "When you control the mail, you control...information."

A: Newman to Jerry & George

Q: "I love Yoohoo."

A: Jerry to Elaine.

Q: "I cheated in the contest."

A: George to Elaine & Jerry as the plane was going down

Q: "We've officially bottomed out."

A: Kramer to Newman.

Q: "He's very regimented about his meals."

A: Newman to George

Q: "Ya got girl problems? Doin' some of that crack cocaine?"

It was George to Newman.

A: Steinbrenner to George.

Q: "He's a bad man. A very, very bad man."

A: Babu to his friend after being deported

Q: "Maybe the test was gender biased. You know, a lot of questions on hunting and testicles..."

A: Jerry to Elaine.

Q: "I been goin to the movies for 20 years, no one's ever asked me for the stub."

A: George to the ticket taker at the theatre

Q: "Man, we're missing 'The Death Blow!'"

A: Kramer to Jerry.

Q: "Look to the cookie."

A: Jerry to Elaine

Q: "She's talking to ol' Blue Eyes now, Jack."

A: Jon Lovitz to Jerry

Q: "Because you're silly. Get it?"

A: Kramer to Jerry

Q: "I haven't celebrated Festivus in years. What's your interest?"

A: Frank to Kramer

Q: "I suppose we all look alike to you"

A: George's co-worker Mr. Morgan to George

Q: "The first 24 hours are the worst. Better bring a poncho."

A: Peterman to Elaine about her heroin-addict boyfriend

Q: "Who told you to put the cheese on? I didn't tell you to put the cheese on."

A: Jackie to secretary.

Q: "You don't have to help anybody. That's what this country's all about."

A: Jackie to Kramer

Q: "My wallet's gone, my wallet's gone!"

A: Jerry's father yelling in the doctor's office
Q: My name is George. I'm unemployed and I live with my parents