Sir Pentious was formerly an eccentric, Victorian-era steampunk inventor of the Hazbin Hotel who became the first sinner to ever ascend to Heaven upon being redeemed. He is a massive dork who wants to be loved, and is willing to do anything for his friends. He is creative and always striving to be "modern and cool. He attempts to stop Adam from destroying the hotel, but is vaporized instead. However, rather than dying, his loyalty and sacrifice are enough to redeem his soul and ascend to Heaven.