She is a coral pink starfish who has jet-black hair with a violet-red flower in her hair. She wears a big top-dress that is the same in design and color as Patrick's pants. She has three long, thick eyelashes just like SpongeBob.
Margie fell in love with Herb Star when they went to the World's Least Exciting Sweater.
The two married and had two children, Sam, and Patrick Star.
She and her husband were first indirectly mentioned by Patrick as "parents" in "Home Sweet Pineapple," when he mentions that his parents kicked him out of their house at an early age and forced him to live on his own.
When Patrick rambles in the Reef Cinema bathroom, he says, "What's my mom gonna say?," indirectly mentioning her.
"I'm with Stupid"
She and her husband appear at the end of the episode. Squidward comes over to Patrick's house to say that Patrick's parents have been repeatedly asking where he is. Patrick hugs his parents and they are impressed that he can do basic tasks like getting dressed.