Casey's mother in the 2003 cartoon series appears to be a much more resolute and brisker person than in the Mirage comics. After the death of her husband by the Purple Dragons she was very careful not to let her son fall into the wrong hands. When April first met her, she made her son's 'fiancee' undergo a series of rigorous tests, through clenched teeth April passed them with the help of Leonardo and Splinter. Casey's mom was pleased that April passed all her test and told her she could now call her "Mom".
But on this occasion Mrs. Jones discovered the two secret helpers and asked Casey to tell her the story about them someday, later she told her wayward nephew Sid of the Turtles and Splinter, when Casey's and April's wedding was imminent - on the condition he not tell a soul about Casey's special friends or she'll "bust his kneecaps".