George Takei is known for his biting wit, but when it comes to Donald Trump, he's not cracking jokes anymore.

George Takei/Facebook - facebook.com

The beloved "Star Trek" actor and activist posted a Facebook video in which he delivers a passionate case against Trump — all in Spanish.

"Many don't know that I speak and understand Spanish," he writes.

"In fact, I grew up with many Mexican American neighbors in LA. This message, regarding my own personal experience with racial demonization, is addressed in Spanish to my Latino fans and their families and friends. I hope I did the language justice."

Takei describes the horrors he and his family faced in the United States during World War II. George Takei/Facebook - facebook.com

Though they were Americans, they were interned.

George Takei/Facebook - facebook.com

He warns that this could happen again.

"When Trump today says Mexicans are rapists and drug dealers, it is his way of similarly dehumanizing whole groups, so that he can set his plans in motion."

Takei describes how "anti-Japanese hysteria" led him and his family into Japanese internment camps.

"Today, Trump wants to forcibly round up 100 times the number interned in 1942."

Takei points out that Trump hasn't yet explained "who can stay and who must go." He reminds us that "back then, they simply said, 'A Jap is a Jap' [...] today, Trump tells his supporters that a 'Mexican is a Mexican.'"

George Takei/Facebook - facebook.com

Takei calls on Latinos to vote in "large numbers in 'swing states'" to prevent a Trump presidency.

According to its latest polling averages, RealClear Politics forecasts Clinton as a slight favorite in New Mexico and Colorado, and lists Nevada as a toss up.

People are responding to Takei's message.

George Takei/Facebook - facebook.com

George Takei/Facebook - facebook.com

George Takei/Facebook - facebook.com

You can watch the entire video below.