Police on Tuesday appealed to the public for help in finding a woman who vanished six weeks ago, describing her husband as "less than helpful."

Detective Chris Gable told a press conference that Lesley Herring, 46, disappeared Feb. 8 after an argument with husband Lyle Herring.

The woman's sister Aasha Davis, an actress who has had recurring roles on "Friday Night Lights" and "Grey's Anatomy," reported her missing several days later after discovering she had not been to work.

Gable said Lyle Herring, who was standing nearby at the news conference, was not considered a suspect, but added that he had not been fully forthcoming.

"I would describe his cooperation as fragmented and less than helpful, not someone I would expect as a grieving husband," Gable said.

Lyle Herring appealed for his wife to come home.

"Please give us a call," he said. "Let us know what's going on. We have a lot to talk to about."

At the press conference he said he would not take any questions. But in an interview with KCAL-TV, he denied any involvement in his wife's disappearance and said police had not asked him to take a polygraph test.

He said that he and his wife had planned to take a Valentine's Day vacation at Rosarito Beach, Mexico. He said he went on the trip anyway, thinking that his wife may have been there.

Gable said that detectives are pursuing leads stemming from threats Lyle Herring received over money he owed.

KCAL-TV reported that Herring had radically changed his appearance by cutting off long dreadlocks on Feb. 14.

"She is a creature of habit," Davis said at the news conference, "and this is why her disapperance is so alarming to us."