"Growing Pains" father Alan Thicke (search) is headed to the altar again.

Thicke, 58, will wed his longtime girlfriend, Tanya Callau, in Cabo San Lucas, Mexico, on May 7, his publicist said in a statement Monday.

It will be the third marriage for Thicke, who played TV dad Jason Seaver on ABC's "Growing Pains," which ran from 1985 to 1992.

"I'll be on my third honeymoon, so I'm more of an authority than I care to be," Thicke joked in a statement.

Thicke had a cameo in the 2004 film "Childstar" and is producing and writing a television pilot called "Second Honeymoon."