Hawaii Five-O (Main Character)
Played by: Jack Lord

Season 1
- He has never been married (Cocoon)
- Car No. Plate: 4E-6845 (Cocoon)
- Car No. Plate: F6-3958 (Full Fathom Five)
- Selected as head of Five-O by Governor Jameson (Samurai)
- Left the navy with the rank of Commander (Samurai)
- Goes undercover as Steve Crawley (The Ways of Love)
- Recommended for head of Five-O by the Attorney General (Yesterday Died and Tomorrow Won’t Be Born)
- Friend: Phil Kalama (Along Came Joey)
- His younger sister is Mary Ann and she is married to Tom Whalen. They live in Los Angeles and have a son named Tommy. (Once Upon a Time Part I; Once Upon a Time Part II)
- I.D. Serial Number: 22082 (Once Upon a Time Part I)
- Address: 404 Piikoa Street, Honolulu (Once Upon a Time Part I)
- Had mild poliomyelitis around the age of ten (Once Upon a Time Part II)
- Had a left leg fracture and an appendectomy (Once Upon a Time Part II)
- Plays guitar (Not That Much Different)
- Goes undercover as Harry K. Brown (Six Kilos)
- Has had some experience at safe-cracking for Naval Intelligence (Six Kilos)

Season 2
- Mike Finney calls him Mac (All the King’s Horses)
- The Pittsburg Caper was his first big arrest in Hawaii. It was a jewelry heist masterminded by Ossie Connors. (Which Way Did They Go?)
- Records indicate two birth dates for him – both one year apart (Blind Tiger)
- Five-O staff hold a surprise birthday party for him at the office (Blind Tiger)
- Loves his colleagues like brothers (Cry, Lie)

Season 3
- Car No. Plate: F6-3958 (The Second Shot)
- Plays guitar (Time and Memories)
- Former girlfriend is Cathy. He was a navy lieutenant when he met her (Time and Memories)
- Owns a boat that he inherited from an old Chinese man he helped (Force of Waves)
- Friends: Cal and Alicia Anderson (Force of Waves)
- Friend: Jimmy Nuanu (The Last Eden)
- Native Hawaiians trust him because he is always on their side (The Last Eden)
- Prisoners say he is the “smartest cop on the rock” (The Double Wall)
- Can ride a horse (Paniolo)
- Resigned his naval commission (F.O.B. Honolulu Part I)
- Went to the Naval Academy with Ron Nicholson (F.O.B. Honolulu Part II)

Season 4
- Star Sign: Capricorn (Highest Castle, Deepest Grave)
- Car Numberplate: F6-3958 (Wednesday, Ladies Free)
- Plays golf (3,000 Crooked Miles to Honolulu)
- Works most Sundays (3,000 Crooked Miles to Honolulu)
- Testifies at the Johnny Oporta trial in August 1971 (For a Million…Why Not?)
- His career will be ruined if the Governor is killed (Rest In Peace, Somebody)
- Goes to the barber every Tuesday (Bait Once, Bait Twice)
- Attended the International Drug Control Conference in August 1968 (The Ninety-Second War Part I)
- In 1968 went on a vacation to Switzerland (Good Night, Baby – Time to Die!)
- Was appointed head of 5-0 in 1959 (Good Night, Baby – Time to Die!)
- Is in the Navy Reserve (Follow the White Brick Road)

Season 5
- Full name: Stephen J. McGarrett (Death is a Company Policy)
- Born: 10 March, 1927 – Metropolitan Hospital, Los Angeles, California (Death is a Company Policy)
- Father’s name is John – occupation: plumber. Mother’s name is Doris – nee Callahan. (Death is a Company Policy)
- Went to Oakdale Elementary School – first grade, 1933 (Death is a Company Policy)
- Was immunised for measles and polio in 1933 (Death is a Company Policy)
- Went to Valley High School and was in grade 12 in 1944 (Death is a Company Policy)
- Subjects studied in high school: Biology, Journalism, Drafting, Geometry, American History, Phys. Ed. (Death is a Company Policy)
- Goes to Karate on Tuesdays and Thursdays (‘V’ for Vashon: The Father)
- Gets a haircut on the third Wednesday of every month (‘V’ for Vashon: The Father)
- Meets with the District Attorney each Friday at noon. (‘V’ for Vashon: The Father)
- Former girlfriend: Margo Cooper. It’s been 8 years, 2 months and a couple of days since they have seen each other (Thanks for the Honeymoon)
- Drinks black coffee (Thanks for the Honeymoon)

Season 6
- Has been in Hawaii for 12 years (Murder is a Taxing Affair)

Season 7
- Says his middle name is Aloysius (A Gun for McGarrett)
- Gets up at 5am (A Gun for McGarrett)
- Usually goes jogging three times a week – Tuesday, Thursday and Saturday (A Gun for McGarrett)
- Doesn’t go jogging on the days he gets a haircut (A Gun for McGarrett)
- Plays golf (The Two-Faced Corpse)

Season 8

Season 9
- Girlfriend: Cathi Ryan (Man in a Steel Frame)
- Learning to play tennis (Man in a Steel Frame)
- Sometimes plays tennis with Danny (Man in a Steel Frame)

Season 10

Season 11
- Doesn’t drink alcohol (The Sleeper)
- He was 13 when his father was run over and killed by a supermarket robber. His father was 42 years old. (Number One With a Bullet: Part 2)

Season 12
| Dan Williams → |






