I found a piece of fanart that I think would be perfect. Take a look

http://browse.deviantart.com/?qh=§ion=&global=1&q=Fruits+basket+mother#/dpqyg7

SO can I cast the youngest member of the main cast as this?

If I remember right there was an issue of "Teen Titans Go!" with the Doom Patrol guest starring, helping the Titans get things together for Beast Boy's birthday. Since Rita (Elasti-Girl) and Steve (Mento) had adopted Beast Boy aka Garfield Logan, they were his parents. Steve in "TTG" was a Drill Sergeant Mc Nasty doing the "tough love" thing with BB, and Rita wasn't always thrilled with it. When they got into an argument, Larry (Negative Man) quipped to Cliff (Robotman), "I hate it when Mommy and Daddy fight."