佢亦都係一位
He's also one of them.

Cantonese Sentence Breakdown

佢 heoi5
he
she
it (Cantonese)
Mandarin equivalent: 他tā [他]
亦都 jik6 dou1
also
係 hai6
(Cantonese) to be
to connect
to relate to
to tie up
to bind
to be (literary)
to involve
relation
relationship
consequence
yes
indeed
right
一 jat1
one
single
a (article)
as soon as
entire
whole
all
throughout
"one" radical in Chinese characters (Kangxi radical 1)
also pr. [yāo] for greater clarity when spelling out numbers digit by digit
first (positional)
one part of a fraction, such as 'a' quarter, an eighth
a short duration (when used with a verb)
each
same
dedicated
from the start
位 wai6
position
location
place
seat
classifier for people (honorific)
classifier for binary bits (e.g. 十六位 16-bit or 2 bytes)
throne
post
rank
status