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Appearances
Numberblocks
Main cast, played by David Holt
- Episode 4x07: Seventeen (Jun 17, 2019)
- Episode 4x12: Tall Stories (Jul 9, 2019)
- Episode 4x13: Flights of Fancy (Jul 10, 2019)
- Episode 4x14: I Can Count to Twenty (Jul 11, 2019)
- Episode 4x15: Heist (Jul 12, 2019)
- Episode 4x19: Terrible Twosday (Jul 18, 2019)
- Episode 4x30: More to Explore (Aug 16, 2019)
- Episode 5x06: The Many Friends of Twenty (Mar 15, 2021)
- Episode 5x07: Ten Vaulting (Mar 16, 2021)
- Episode 5x08: Twoland (Mar 17, 2021)
- Episode 5x10: Odd Side Story (Mar 19, 2021)
- Episode 5x13: The Team Factor (Mar 24, 2021)
- Episode 5x14: Hidden Talents (Mar 25, 2021)
- Episode 5x15: Making Patterns (Mar 26, 2021)
- Episode 5x30: 100 Ways to Leave the Planet (Jun 25, 2021)