You should be careful of people like him.
That bunch is always making noise.
I'm fed up with those politicians.
I can't forgive people who do that kind of thing.
仲間 is a positive or neutral word for companions or colleagues, whereas 輩 often carries a distancing or critical tone.
奴ら is a rough, colloquial way to refer to a group of people, while 輩 is a bit more literary and can appear in formal writing too.
一味 specifically means a group of accomplices or a gang bound by a common (often criminal) purpose, whereas 輩 is broader and just marks a shared trait.
lawless people; gang; malcontents; recalcitrants
Standard kanji form; common in news and formal contexts.
Rare variant kanji; the reading やから is not standard for 族, which is normally read ぞく. Use with caution.
Kana spelling is common in informal writing and when the kanji is not needed.
Originally from や (house) + から (family/clan), referring to one's household or lineage. Over time, the meaning broadened to any group of people, often with a pejorative nuance.