Umi-Friend, that's you! You are an important member Team Umizoomi. You've got Mighty Math Powers to help Team Umizoomi with their missions. Umi-Friend is what Milli, Geo, and Bot refer to the viewers watching the show, and constantly talk directly to you, usually either explaining things or asking for help.
Umi-Friend never appears directly in the show, only being referenced by the name.
Quotes[]
Milli: (In early episodes) Umi-Friend, you're mighty good at math. We're so glad you're on our team.
Milli: Umi-Friend, that's you! You've got mighty math powers, too! Let's see your mighty math powers! Count down with me! Start with five: five, four, three, two, one!