Dan'l Baboon (Buzara) is a childhood friend of Leo (Kimba) and Lyra (Kitty), and is seen in 1965 show Kimba the White Lion, 1966's "Onward Leo!" (Leo the Lion) and the 1997 movie Jungle Emperor Leo. He didn't appear in Tezuka's manga.
He is a Mandrill with a white moustache. In the 1997 film he's more look like a a generic monkey rather than a mandrill.