Another figure is the Mail-Away Captain Harris. Though the figure doesn't resemble the movie character much, it was quite tough to find since many kids did not mail away for him towards the later end of the toy line. Another tough figure is Stakeout Sweetchuck. The figure itself was mailed to kids after Kenner ran out of Captain Harris figures. Stakeout Sweetchuck was mailed not loose, but carded.
Carded examples are extremely rare to find, and price guides undervalue it as usual.
These 3 figures are the most demanded of the entire line.