Bido

Bido was a chimera created in the Fifth Laboratory; after escaping it, he followed the homunculus Greed. Before his transmutation, he was a member of Martel's military special ops team which instigated the Ishval revolt. He was fused with a lizard or a gecko; this enabled him to have a firm grip on surfaces when climbing, and to use his tail as a bludgeoning weapon. He is bald and speaks in a raspy, hacksaw voice, though it's unclear whether this is a result of the fusion or not.