Todd Hunsiker was the brother of Alice Hunsiker, and the son of Douglas Hunsiker, a neighbor of the Rodman family. Todd would often have fun on his skateboard which Caesar would watch while growing up. Todd and his sister became infected with the ALZ-113 when their father accidentally passed it onto them and they died along with their father soon after.
- Todd was the only member of the Hunsiker family not to show any antagonism towards Caesar.
- Todd's scenes as a teen were cut from the theatrical version, but were seen in the film's deleted scenes.