Actor and comedian, Andrew Koenig - the son of "Star Trek's" Walter Koenig - is missing and his family fears the worst.

According to a statement on Walter Koenig's official Web site, Andrew has been unaccounted for since Valentine's Day, where he was last seen in Vancouver, British Columbia. He was apparently visiting friends in the Canadian city but never boarded his return flight bound for Los Angeles on Feb. 16.

"He went up to [Vancouver] to visit friends who last saw him on the 14th," his sister, Danielle Koenig, told Zap2it. "Any information we can get on his whereabouts would be helpful."

The actor, who is best known for playing Boner in ABC's "Growing Pains," is believed to be suffering from depression and the Vancouver police are now investigating his disappearance.

According to the Koenig Web site, Andrew was last seen at a bakery in the Stanley Park area of Vancouver, and the Koenigs said they will head to British Columbia to help with the search this week.

To read more on the search, please click here.