The players did not travel to Leeds on Friday night where bottom-of-the-table Raiders, who have not claimed a single win yet this season, lost 91-72.
In a statement, Raiders chief executive Dave Briggs said: “The players have had their contracts terminated because of flagrant disregard for club rules and for serious off court issues.
“Daryl (Corletto) has come in as head coach and instilled a new culture and a new set of values that we expect the players to be a big part of.
“Unfortunately, Richie and BJ have not only let Daryl down with their behaviour, but also the rest of the team, the sponsors and the fans of the club. We have been forced into taking this decision.”
Corletto, who recently took over from Jay Marriott as head coach, said: “The new values that we are implementing across the club are not just there as something meaningless on paper. These are about respect, accountability, hard work and honesty. If you don’t buy into these values then it’s very simple, you will no longer be a Plymouth Raiders player.”
Anthony and Edwards, who only arrived at the club last month, have not been available to comment on the allegations.
Meanwhile, Raiders say they are currently talking with possible replacements, but there will be no additions ahead of Sunday’s home match against Glasgow Rocks (4pm).
The city side are desperate to gain a win and stop the gap widening between themselves and the other BBL sides.
Guard Josh Wilcher said: “Glasgow are a good outfit, we really respect them and the group they have put together. But we owe our fans a home win after some not great results at home so we’re hoping to get over the line in a tough physical match.”