Hal Linden and Hal Holbrook are both veteran actors who have been in the entertainment industry for decades. Hal Linden is best known for his role as the title character in the 1970s sitcom 'Barney Miller'. Hal Holbrook is best known for his one-man stage show, 'Mark Twain Tonight!', which he has performed for over 60 years. Both actors have won numerous awards for their work, including Emmy Awards and Tony Awards.