Harold Rowe Holbrook Jr. (February 17, 1925 – January 23, 2021) was an American actor, television director, and writer. He first received critical acclaim in 1954 for a one-man stage show he developed, Mark Twain Tonight!, performing as Mark Twain, while studying at Denison University. He won the Tony Award for Best Actor in a Play in 1966 for his portrayal of Twain. He would continue to perform his signature role for over 60 years, only retiring the show in 2017 due to his failing health. Throughout his career, he also won five Primetime Emmy Awards for his work on television and was nominated for an Academy Award for his work in film.

Holbrook made his film debut in Sidney Lumet's The Group (1966). He later gained international fame for his performance as Deep Throat in the 1976 film All the President's Men. He played Abraham Lincoln in the 1976 miniseries Lincoln and 1985 miniseries North and South. He also appeared in such films as Julia (1977), The Fog (1980), Creepshow (1982), Wall Street (1987), The Firm (1993), Hercules (1997), and Men of Honor (2000).

Holbrook's role as Ron Franz in Sean Penn's Into the Wild (2007) earned him both Academy Award and Screen Actors Guild Award nominations for Best Supporting Actor. In 2009, Holbrook received critical acclaim for his performance as recently retired farmer Abner Meecham in the independent film That Evening Sun. He also portrayed Francis Preston Blair in Steven Spielberg's Lincoln (2012).

In 2003, Holbrook was honored with the National Humanities Medal by President George W. Bush.

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