Commissar Yarrick
The Man, The Myth, The Legend
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Commissar Yarrick is one of the most badass commissars ever to threaten inspire the Imperial Guard. He first showed up on Armageddon, coming out of retirement to kick the teeth out of Ghazghkull Mag Uruk Thraka's WAAAAAGH. Ghazghkull thinks he's the bestest humie evar. He also has a laser eye, ala Superman, and a fuckhuge power klaw. He got his fuckhuge powerclaw from an equally fuckhuge ork who wanted Yarrick to bend over while something horrible was done to said commissar, but Yarrick proceeded to say "FUCK YOU FILTHY XENOS SCUM!!!" and kicked the ork in the teef. He also had his arm chopped off in that fight but no one really cares because he stole the Ork's arm with a free fuckhuge power klaw attached.
Unfortunately for Ghazghkull, Yarrick found true love in another man: The Black Templar Chapter Master and all around hot bastard, High Marshal Helbrecht.
He is an absolute monster of a combatant and can easily hand virtually any Spehss Mehreen his ass on a silver platter in combat. Not even genetic enhancements and power armor are a match for an ECKSBAWKS HUEG power klaw and fucking super man style laser vision when paired with the standard issue balls of steel that every person in the Imperial Guard comes with. He makes Gaunt and Cain look like total pussies of commissars in comparison.