(From Wikipedia)
ISTJs thrive on organization. They keep their lives and environments well-regulated. They bring painstaking attention to detail in their work and will not rest until a job is well completed.[12] They are often dissatisfied with unresolved issues, whether in life or in fiction.

ISTJs are faithful, logical, organized, sensible, and earnest traditionalists. They earn success by thoroughness and dependability. Shutting out distractions, they take a practical, logical approach to their endeavors. Realistic and responsible, they work steadily toward their goals. They enjoy creating order in both their professional and personal lives.

Despite their focus on their internal world, ISTJs prefer dealing with the present and the factual. Keen observers of life, they weigh various options when making decisions. ISTJs are well-prepared for most eventualities and have a good understanding of most situations. They believe in practical objectives, and they value traditions and loyalty.

• Sparky Anderson, major league baseball coach
• Wilford Brimley, actor
• Rosalynn Carter, former U.S. first lady
• Paul Coverdale, U.S. Senator–R GA
• Sam Donaldson, news reporter
• Jesse Helms, U.S. Senator–R NC
• Jackie Joyner-Kersee, U.S. olympian (heptathlon)
• Harry Morgan (Harry Bratsburg), actor (“Dragnet”, “M.A.S.H”)
• Cathy Rigby, U.S. olympian (gymnastics)
• Thomas (Christ’s disciple)
• Jack Webb, actor (Joe Friday in “Dragnet”)
• George H. W. Bush (U.S. President)
• Calvin Coolidge (U.S. President)
• Dwight D. Eisenhower (U.S. President)
• Benjamin Harrison (U.S. President)
• Herbert Hoover (U.S. President)
• Andrew Johnson (U.S. President)
• George Washington (U.S. President)

Fictional

• Cliff (“Cheers”)
• Eeyore (Winnie the Pooh)
• Mr. Martin (hero of James Thurber’s Sitting in the Catbird Seat)
• Puddleglum, the marshwiggle (Chronicles of Narnia)