The Increasingly Poor Decisions of Todd Margaret star and the House actress will wed, her rep confirms

By Stephen M. Silverman Julie Jordan
August 17, 2011 02:55 PM
Steven A Henry/WireImage

David Cross and his longtime girlfriend, Amber Tamblyn, are engaged to be married, her rep confirms to PEOPLE.

The actress, 28 – who starred in General Hospital and Joan of Arcadia before moving on to the big screen in the 2005 hit The Sisterhood of the Traveling Pants – recently returned to TV with a role on House.

Cross, 47, is perhaps best known for his outrageousness on the 2003-06 cult sitcom Arrested Development, on which he played the gaffe-prone, madcap Tobias Fünke. Talk of a feature movie based on the show has long been circulating. Currently, he stars in the British-American comedy TV series The Increasingly Poor Decisions of Todd Margaret.

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Earlier this month, the couple were spotted on the patio at Oscar’s Cerveteca in Venice, Calif., where they met friends for drinks – beer for him, rosé for her – and casual conversation.