Sandy (portrayed by Josie Davis), is a girl Alan met in a cooking class. She believes in Santa Claus and in the episode "Santa's Village of the Damned", she took over Charlie's house and decorated it with Christmas Decorations and over stuffed Alan, Charlie and Jake with her cooking. At the end of the episode she has sex with Alan and is never seen again.
- She still believes in Santa Claus.
- She has a Martha Stewart complex.
- She ruins Charlie's house with her Christmas obsessions.
- She stayed for weeks after Charlie, Alan and Jake started liking her cooking, leading to them getting fat.
- She and Alan met in cooking class.
- She often quotes about what her mom has taught her.