What choo talkin' 'bout, Willis?

Actor -- and now author -- Todd "Willis" Bridges, today at the LA Times Festival of Books at UCLA.

Arnold -- aka Gary Coleman -- was nowhere to be found.

As Todd said when asked about him, "Gary don't like nobody."

But he did have kind words for his TV dad on Diff'rent Strokes, Conrad Bain.

"We talk almost every other day.  He's like a father to me," said Bridges.

As for working on the show, he said for him, and all the rest of the cast (except Coleman), it was a great experience.

And yes, he says it's OK to call him Willis.