"Grey's Anatomy" star Patrick Dempsey may be the real "McSteamy".

The actor, who was dubbed "McDreamy" as a star of the hospital drama while his co-star was called "McSteamy," may soon be serving hot, steaming cups of Joe.

Related: George Lucas engaged to businesswoman

Dempsey won a bankruptcy auction to buy Tully's Coffee, a small coffee chain based in Seattle. Among those he beat out is Tully's much bigger Seattle neighbor, Starbucks Corp, which is known for its ubiquitous white cups with a circular green mermaid logo.

Dempsey, whose company Global Baristas LLC plans to keep the Tully's name, declared victory on the social media site Twitter: "We met the green monster, looked her in the eye, and...SHE BLINKED! We got it! Thank you Seattle!

The win for Dempsey deals a rare setback for Starbucks on its home turf. Starbucks has long been both praised for bringing "coffeehouse culture" to the US and criticized for crushing smaller chains. The coffee giant, which had planned to convert the Tully's cafes to its own brand, last month announced plans to expand its global footprint to 20,000 cafes over the next two years, up from the current 18,000.

Dempsey said in an interview on Friday that as the underdog in Seattle, Tully's will need to find its identity.

Photos: