Hot answers tagged bionicle
Those appear to be Bionicle figures, a theme that was active from 2001 to 2009 (and making a comeback in 2015, I hear). The line focused on buildable "action figures" (aka "constraction figures"). See here: http://brickset.com/sets/theme-Bionicle
The yellow one is the Glatorian-era Mata Nui, the red one with the staff is a Toa Nuva-era Rahkshi (Turahk, to be specific), and the green spider-thing is a Toa Hordika-era Visorak (Keelerak) that has been placed upside-down. The other four are Metru Nui Matoran, without their masks; the lighting makes it hard to tell what elements they correspond to, but ...
Only top voted, non community-wiki answers of a minimum length are eligible