Remembering James 'Dr. Daddio' Walker, Denver Radio Pioneer

A visionary voice in media, he used radio to uplift culture, amplify community voices, and mentor generations of broadcasters and leaders.

Jan. 27, 2026 at 8:39pm

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James Walker, known as 'Dr. Daddio' to generations of Denver radio listeners, has passed away at the age of 86. Walker was a legendary broadcaster and entrepreneur who owned and operated KDKO Radio, one of the nation's most influential Black-owned radio stations. He used the station to uplift culture, amplify community voices, and mentor future broadcasters and leaders.

Why it matters

KDKO was a pioneering Black-owned radio station that served as a vital source of information and community for Denver's African American population for decades. Walker's vision and leadership helped shape the city's media landscape and inspired generations of broadcasters and community leaders.

The details

Walker launched KDKO in 1967, making it the first radio station in Colorado to serve the Black community. Despite initial challenges, the station quickly became a hub for news, music, and community events. Under Walker's ownership, KDKO embraced trends like disco and expanded its reach to 5,000 watts. Even after selling the station in the 1980s, Walker remained involved as a consultant to ensure KDKO's legacy was preserved.

  • KDKO was launched on April 1, 1967.
  • In the mid-1970s, KDKO increased its power to 5,000 watts.
  • In 1980, Walker purchased KDKO after it was sold by previous owner Dave Segal.
  • In 1991, KDKO defaulted on a loan, and in 1992 the IRS briefly shut down the station.
  • KDKO ceased operations in 2002 when it was sold to billionaire Phil Anschutz.

The players

James 'Dr. Daddio' Walker

A legendary broadcaster and entrepreneur who owned and operated KDKO Radio, one of the nation's most influential Black-owned radio stations.

Dave Segal

A Denver radio veteran who previously played a key role in the success of KOSI, another major radio station in the area.

Phil Anschutz

A billionaire who purchased KDKO in 2002 and remade it as KNRC, a news-talk station.

Tim Brown

Phil Anschutz's son-in-law, who took over KNRC after the purchase.

Nikki Swarn

A former general manager of KUVO who was inspired by Walker and considered him a role model.

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What they’re saying

“He was the first African American to be general manager of a Denver radio station, and I'm the first African American woman.... I never put my feet in the shoes of people like him, but I put my shoes next to them, and he was a big influence on me.”

— Nikki Swarn, Former KUVO general manager (Westword)

“We thank each of you for the prayers, love, and unwavering support you have shown our family. His life was profound, purposeful, and deeply impactful. The legendary voice that carried us through sunshine, rain, and long afternoon drives home. He touched generations, shaped lives, and leaves behind a legacy of faith, strength, wisdom, and of course, 'United in the Community.' A love that will continue to live through us.”

— Walker family (Family statement)

The takeaway

James 'Dr. Daddio' Walker's legacy as a pioneering Black radio broadcaster and community leader in Denver will continue to inspire future generations of media professionals and civic-minded individuals. His vision and dedication to uplifting underrepresented voices and fostering unity serve as a model for how media can positively impact local communities.