Celt

Celts are the ethnic group of humans on Astra who speak a Celtic dialect, or their ancestors who were originally from Earth, among the Celtic tribes on the island of Britain.
The Celts, just like the Romans, originally travelled through a portal from Earth, primarily by sea off the coast of Ynys Môn.
File:Peoples of Southern Britain 150 AD (Ptolemy).jpg
File:Peoples of Northern Britain 150 AD (Ptolemy).jpg
Insular tribes of native Britons (also Brittani in latin) on the planet Earth:
Dumnonii
Durotriges
Belgae  
Regni
Cantiaci
Atrebates
Demetae
Silures
Dobunni
Catuvellauni
Trinovantes
Iceni
Ordovices
Decangli
Gangani
Cornovii
Corieltavi
Brigantes
Carvetii
Parisi
Novantae
Selgovae
Otadini
Epidii
Venicones
Taexali
Creones
Caledonii
Vacomagi
Carnonacae
Decantae
Caereni
Smertae
Lugi