Actor Matt Lanter is set to walk down the aisle after proposing to his longtime girlfriend.

The 29 year old plays a rebellious womanizer Liam Court on hit show 90210, but he couldn't be more different from his TV character in real life - he asked Angela Stacy to marry him during a romantic vacation in Paris, France last month, reports Eonline.com.

He sealed the deal with a stunning solitaire 4.2-carat diamond ring.

The couple has been dating for three years.

Lanter also provides the voice for Jedi Knight Anakin Skywalker in Cartoon Network's Star Wars: The Clone Wars.