Gallo-Romans ?
Goths, Vandals, Suevi, Burgundians, Alemani,
(also christians, but following a different form, Arianism)
also: Franks (catholics)
Visigoths and Seubi (Iberian peninsula)
Vandals (noth africa)
Celtic people
(is this a tribe or a country?) - Visigoths?
Huns - to the east, under king Attila invaded eastern Europe, defeated by a coalition of Romans and Goths 451.
Celts (Scotland and Ireland - what about Scots?)
Ostrogoths (Italiy etc. now ruling what's left of western roman empire)
Graeco-Romans (from the eastern roman empire)