| Character | Gallery | Fanmades | Quotes |
Official 16
Official 16 (2x8)
Ten and Six form
“Square party!”
El Gran Arco
The square root squad "The Four Fours"
Sixteen sleeping in "Tall Stories"
The death stare
How did they not notice this error?
| Numberblocks | Discovered | Zero, One, Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten, Eleven, Twelve, Thirteen, Fourteen, Fifteen, Sixteen, Seventeen, Eighteen, Nineteen, Twenty, Twenty-One, Twenty-Two, Twenty-Three, Twenty-Four, Twenty-Five, Twenty-Six, Twenty-Seven, Twenty-Eight, Twenty-Nine, Thirty, Thirty-One, Thirty-Two, Thirty-Five, Thirty-Six, Forty, Forty-Five, Forty-Nine, Fifty, Fifty-Five, Sixty, Sixty-Four, Seventy, Eighty, Eighty-One, Ninety, One Hundred |
|---|---|---|
| Undiscovered / Non-physical | Forty-Two, Ninety-Nine | |
| Times Tables | One Times Table, Two Times Table, Three Times Table, Four Times Table, Five Times Table, Ten Times Table | |