Ricardo Medina Jr., 36, "was an actor who portrayed the Red Power Ranger'' in the animated TV show's latest two seasons, Deputy Mike Carraza said.
The victim, Joshua Sutter, also 36, was stabbed to death about 3:45 p.m. Saturday at a residence in the 38000 block of San Francisquito Canyon Road.
Medina and Sutter were involved in an argument, which turned into a fight, according to Deputy Juanita Navarro-Suarez of the Sheriff's Information Bureau.
Medina went into his bedroom with his girlfriend, and closed the door. But Sutter forced the bedroom door open, the deputy said.
Medina then allegedly stabbed Sutter once in the abdomen with a sword, which had been kept next to the bedroom door, according to the narrative from the sheriff's office.
After Sutter collapsed, Medina called 911, stayed at the scene and was arrested there, deputies said. He was booked on suspicion of murder at the sheriff's Palmdale station, the deputy said.
He was being held at the station in lieu of $1 million bail and was due in court in Lancaster on Tuesday, according to sheriff's online inmate records.
There was no answer Sunday at Saban Capital, the firm owned by TV producer Haim Saban, or its New York City publicists.
Saban has bought back rights to the Power Rangers franchise, after selling the lucrative property in the 1990s.
The series, featuring Japanese cartoon-like action, was roundly criticized for its on-screen violence when it debuted on U.S. television.