Bogroll is a twoll in the service of Stanley the Tool. He was originally a henchmanErf-b1-p004 ("the lowest henchman", according to himErf-b1-p085) and a garrison troop in the castle of Gobwin Knob. Later, he was promoted to lackey in attendance for Lord Hamster by Wanda Firebaugh, much to Stanley's amusement.Erf-b1-p028
During the following Turns, Bogroll attempted to assist Parson, by finding him boots (they might be greaves) assisting him with Parson's many questions (which often confused him) constructing a curiass (with built in pauldrons, and Parson's 'heraldry' painted on the front) He also forges the pieces of Parson's sword together.
Later in the siege, Bogroll is promoted to a bodyguard position and is in charge of protecting the tower where Parson issued orders from.
Bogroll seems to have a very high loyalty, especially to Parson.
Bogroll has only one eye, a trait not shared by all twolls.Erf-b1-p10
Bogroll is illiterate.Erf-b1-p033
Bogroll survived a fall that killed a warlord of a much higher level than he was (such that Bogroll leveled twice). This might mean he had a relatively enormous number of hits, or that his Regeneration ability allowed him to survive being reduced to 0 hits, or simply that the warlord was injured from earlier parts of the battle. Also, it's possible that Bogroll landed on Ansom, or that no damage is done from falling.
Bogroll is, to all appearances, a simple follower. At his first appearance, he was about to become the (literal) target of a prank by one of the other henchmen. Wanda's desire to get "as far away from (him) as possible" when she encounters him holding a target-patterned parasol suggests that this is a recurring pattern.
After being promoted to lackey, he made a suit of armor for Parson and otherwise served him loyally. Parson, in contrast to the other characters, treated Bogroll with respect, something which may have influenced and inspired Bogroll's infatuation and fierce loyalty towards Parson. Parson seems shocked and upset that Bogroll's wish is to save his life, but later that wish is fulfilled. He is currently deceased, killed in service to Parson. The Royal Crown Coalition burned his body (perhaps to forestall his Regeneration ability) to the point that Wanda declares that the body cannot be decrypted, but that is only her opinion; not a direct fact.
Real World References
Bogroll is one-eyed - a reference to cyclops.
His name is a British English colloquialism for toilet paper.