Veteran American actor Jon Voight is blasting Penelope Cruz and Javier Bardem over a recent letter accusing Israel of committing "genocide" in the Gaza Strip.

Cruz and Bardem are among several Spanish actors who signed the strongly worded dispatch last week, which also called on the European Union to condemn Israel's military actions.

Penelope Cruz and Javier Bardem

Spanish actress Penelope Cruz clarified her stance on the Israel/Gaza issue when she and her husband were labelled anti-Semites on social media. (Dominique Faget/AFP/Getty Images)

Cruz later sought to soften her stance on the issue after receiving harsh backlash for the letter.

The actress wrote in USA Today: "I'm not an expert on the situation and I'm aware of the complexity of it. My only wish and intention in signing that group letter is the hope that there will be peace in both Israel and Gaza."

'Oblivious to the damage'

Despite the clarification, Voight lashed out at Cruz and her husband Bardem in an open letter published this weekend, calling their comments "ignorant" and declaring that all signatories to the letter should "hang their heads in shame."

“I am heartsick that people like Penelope Cruz and Javier Bardem could incite anti-Semitism all over the world and are oblivious to the damage they have caused."

A major Hollywood executive is also wading into the debate. Relativity Media CEO Ryan Kavanaugh told The Hollywood Reporter that he's "extremely disappointed in Hollywood for its silence in the face of this letter."

Kavanaugh likened the lack of response from the movie industry to "the silence when concentration camps started during World War II."

While the war of words continues in Hollywood, the safety concerns in Israel continue to impact cultural events there.

Heavy metal band Megadeth has cancelled its concert Wednesday in Tel Aviv, and CeeLo Green is skipping his planned Aug. 19 tour stop in Jerusalem.

Wyclef Jean is also set to headline The BoomBox Festival in Hadera, Israel, but organizers have now postponed the scheduled Aug. 14 event to an unspecified date.