Who are some former SIU characters and other returning characters?
Nash’s rival in the SIU during Season 1, bumbling Rick Bettina was fired from the SFPD, only to return later as a bounty hunter in “Moving Target” (Episode #29) in Season 2. In Season 3, Rick returns as, incredibly, Director of Police Investigations (“Found Money,” Episode #42), because his mom has married the Chief of Police. A bogus position is created for Rick which he continues to occupy throughout Season 3. Rick manages to force Nash to take vacation time off to try to depose Nash as head of the SIU (“Downtime,” Episode #46); and later Rick is framed for murder, and he goes to Nash for help (“Lady Killer,” Episode #50). All told, Rick appeared in four episodes of Season 3. There was Nash’s boss Lt. A.J. Shimamura, pony-tailed and a martial artist, who left in “Zodiac” (Episode #16) for Hawaii after the one and a half seasons, leaving Nash in charge of the SIU. Played by the dynamic actor Cary-Hiroyuki Tagawa, Tagawa was featured in the original first season open. The second season
