Trivia

In 2011 he became the only cast member from the original Hawaii Five-O (1968) to appear in the new version of the series, Hawaii Five-0 (2010). With the death of James MacArthur in 2010, he became the last surviving male member of the "Five-0" squad from the early part of the series before his death in 2021.

Used the name Alvin Ta'a in his freshman year in high school. Changed his surname to Harrington during his sophomore year (1952), after his stepfather, Roy Milbur Harrington.

He died the same day as his Ua ho'i ka 'opua i Awalua (2017) co-star Willie Garson: September 21, 2021.

Up until his death in September 2021, Harrington was the last surviving male cast member from the original Hawaii Five-O (1968), leaving Sharon Farrell (who only joined the show's final season) being the last surviving main cast member from the original Five-0 overall. As of July 2023, she's still living.