<P> Matthew Adam Garber ( 25 March 1956 -- 13 June 1977 ) was a British child actor , best known for his role as Michael Banks in the 1964 film Mary Poppins . He also starred in two other Disney films , The Three Lives of Thomasina and The Gnome - Mobile , all three times appearing alongside actress Karen Dotrice . </P>
<P> Matthew Adam Garber ( 25 March 1956 -- 13 June 1977 ) was a British child actor , best known for his role as Michael Banks in the 1964 film Mary Poppins . He also starred in two other Disney films , The Three Lives of Thomasina and The Gnome - Mobile , all three times appearing alongside actress Karen Dotrice . </P>
who played the little boy in mary poppins
who played the little boy in mary poppins
Matthew Adam Garber
Matthew Adam Garber