Trivia: In addition to his regular role as Harm, David James Elliott also played Harm's father in flashbacks scattered throughout the show.
Trivia: David James Elliott, Catherine Bell, and Patrick Labyorteaux were the only actors to appear in all ten seasons. Except for a few special episodes, Elliott and Labyorteaux were the only ones to play the same character, while Elliott was the only actor to appear in every episode.
Trivia: Donald Bellisario was originally against casting Catherine Bell as Mac. Since Bell had played a murder victim in the last episode of season 1, Bellisario felt her re-appearance as Harm's new partner in the first episode of season 2 would confuse the audience. Bell eventually won Bellisario over, and she remained on the show for the rest of the show's run.





Answer: Officially, the individual has been ordered to attend, failing to could be interpreted as either, Failure to follow orders, dereliction of duty, going AWOL, or even desertion. It would depend on the underlying reason as to why the person doesn't appear.