A versatile leading man and supporting player whose folksy, avuncular nature often disguised his true acting firepower, Hal Holbrook was best known to audiences for his portrayal of American humorist Mark Twain in his Tony Award-winning one-man show "Mark Twain Tonight!" which he performed some 2,000 times between 1959 and 2005. Stage provided Holbrook his best showcases, but he was frequently praised for his television work, most notably in "Pueblo" (ABC, 1973), "That Certain Summer" (ABC, 1973), and the title role in the miniseries "Lincoln" (NBC, 1976). Among the more memorable of his dozens of film credits were such roles as the notorious informant known as "Deep Throat" in "All the President's Men" (1976), a guilt-stricken priest in John Carpenter's grisly ghost story "The Fog" (1980), and as the senior partner of a sinister law office with deadly ties to the mob in "The Firm" (1993). The veteran actor received an Oscar nomination for his moving performance in Sean Penn's "Into the Wild" (2008) and scores of accolades for his affecting turn as a proud man nearing the end of a hard life in "That Evening Shade" (2009). One-half of one of Hollywood's happiest marriages, Holbrook's more than quarter century relationship with actress Dixie Carter endured until her passing in 2010. Continuing to perform well into his eighth decade, Holbrook was the very definition of the working actor who loved to work - much to the enjoyment of appreciative audiences everywhere.