After numerous pleas, actor and comedian, Andrew Koenig - the son of "Star Trek's" Walter Koenig - remains unaccounted for.

The younger Koenig, who may be more familiar as Boner from "Growing Pains," has been missing since Valentine's Day, after he stopped taking anti-depression medication. He was last seen visiting friends in Vancouver, British Columbia, but failed to board his flight back to the U.S., spurring on a police-led search.

"I just want to know you're OK," Walter Koenig said during a televised news conference. "If it means you just want to stay here, that's OK. You don't have to come back. Just let us know that's your intention."

Police have already searched his favorite locations from when the actor lived in the Canadian city during the early '90s, but have failed to turn up any trace.

His mother, actress Judy Levitt, also asked for Andrew to make contact.

"Andrew, there is help," she said. "You have so many gifts to offer this world and so much yet to do in this world. You are loved, you count and you matter."

The duo were scheduled to appear on Larry King to discuss their son's disappearance and make another plea for him to make contact, but walked out of the studio only minutes before they were due to go on.

If anyone has seen Andrew Koenig, e-mailed him, or had any contact with him after Feb. 14, or anyone who spent time with Koenig in Vancouver who has not yet talked with the local police, call Det. Raymond Payette at (604) 717-2534.