Brady cast as Harris sibling on CBS laffer

Wayne Brady will guest star in a November sweeps episode of CBS’ “How I Met Your Mother” — and he’ll be playing the brother of Neil Patrick Harris’ Barney.

Harris is white. Brady isn’t. So it’s safe to assume one of the brothers is adopted, right?

“I feel like the less we say about it, the funnier it will be,” said “Mother” exec producer and co-creator Carter Bays. “We wanted to present a different kind of family. (And) we like that ‘What the hell?’ factor.”

About the only thing Bays will reveal is that Barney and his bro have “an interesting relationship.” And while Brady is only booked for one episode, Thomas said he’d like the role to become recurring.

One recent “Mother” guest star who has signed on for several more segs is ex-”Malcolm in the Middle” star Bryan Cranston, who plays Ted’s obnoxious boss.

As for Brady, thesp is slated to shoot his episode next week. Seg is tentatively slated to air Nov. 27.

Brady is repped by WMA.

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