Who is the main character in The Pushcart War by Jean Merrill?

There is not really one main character in the story but, the most important main characters are Maxie Hammerman, Morris the Florist, Frank the Flower, Mr. Jerlusalem,Harry the hotdog,Genarel Anna,Albert P. mack,Big Moe, Louie Livergreen,Mr. Sweet,Mayor Emett P. Cudd,and Wenda Gambling.