Vowels in French can have accent marks; except for "e", this doesn't usually change the sound.
a
like "a" in "father"
e
like "uh" in "duh"
é
like "e" in "deja vu"
ê
like "e" in "set"
è
like "e" in "set"
i
like "ee" in "feed"
o
like "o" in "home", but
rounder
u
like "ee" in "feed" said
with pursed lips; written 'uu' in transcriptions
y
like "ee" in "feed"