Celery

Celery was a character who appeared in two episodes Excess Cabbage, and Best Fiends Forever. He was played by Kevin Brueck.

Excess Cabbage

 * "In fact, around the produce section, I'm known as a bit of a playboy. So, she says she heard it was the onion, but Onion, he's like, "I'm not the one dropping stink bombs, over here." 
 * "What?"
 * "Wh-wh-wh-what is it, Orange?"
 * "What do you want?"
 * "Yeah, whatever. So, anyways..."
 * "What, No, I can get a date, dude, anytime I want."

Best Fiends Forever

 * "Uh, I'm not actually Rhubarb."
 * "What?"
 * "Uh, I am celery, and either you keep calling me Rhubard, or I'm going to stop listening."
 * "Not listening to you. See how easy it is? Real piece of cake."
 * "Wait, so who is this chap?"
 * "Chopped up?"
 * "Oh, I've--i've got to get out of here."
 * "(growl) What?"
 * "That is not funny, man!"
 * "Guys, somethin--something's happen to your friend."
 * "Guys, somethin--something's happen to your friend."