More recently , he has appeared in Mario & Luigi : Partners in Time , in which Baby Mario appeared via time travel along with Baby Luigi , Baby Peach , and Baby Bowser , which could explain the separation of the two characters . Like the older Mario , Baby Mario is voiced by Charles Martinet . In Super Mario World 2 : Yoshi 's Island , a stork carries Baby Mario and Baby Luigi across the sea , but the evil Magikoopa Kamek emerges and steals Baby Luigi , and Baby Mario falls onto an island in the middle of the sea called Yoshi 's Island , home to Yoshis .