Isaiah Washington promises his 'Grey's Anatomy' return will 'blow you away'

103253_D_643 -- GREY'S ANATOMY -  Isaiah Washington stars as "Dr. Preston Burke" on "Grey's Anatomy" on the ABC Television Network. (ABC/FRANK OCKENFE...
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By Jesse Spero
Isaiah Washington, shown here during his previous run as Dr. Preston Burke on "Grey's Anatomy," says he's coming back for scenes that should resonate for a long time. Today

Isaiah Washington says fans will be reeling (in a good way) when he returns to "Grey’s Anatomy." The 50-year-old actor appeared on "Access Hollywood Live," where he spoke about coming back to the ABC series he left 2007.

VIEW THE PHOTOS: On The Set: The stars visit "Access Hollywood Live" (March 2014)

"I read the script last night.... The script is so amazing, it will blow you away," Isaiah, who is also starring on The CW’s "The 100," told Billy Bush and Kit Hoover.

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"Shonda Rimes is genius," he said of the show’s creator. "I'm unbelievably humble and over the moon with what I read last night."

In fact, the actor thinks the episode — which is tied to Sandra Oh’s exit from the series — will have a lasting effect.

VIEW THE PHOTOS: On The Set: The stars visit "Access Hollywood Live" (January 2014)

"I had to stop and say, 'OK, now what? What is the world going to do after this?'" he continued. "It's going to blow you away!"

Isaiah left the series in a less-than-positive way after he used an anti-gay epithet directed toward co-star T.R. Knight. His character, Dr. Preston Burke, also left Dr. Cristina Yang, played by Sandra Oh, at the alter as they were about to married. But his return to the medical drama will be much more optimistic.

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"It's all positive. It's so amazing," he teased. "It’s just beyond!"

First up, catch Isaiah on "The 100," which premieres Wednesday night at 9/8c on The CW.