|Affiliations||The Forever Knights|
|Voice Actor||Dee Bradley Baker|
|First Appearance||The Creature from Beyond|
Sir Reginald was an officer of The Forever Knights.
Sir Reginald was responsible for accidentally unleashing the Lucubra during an excavation. He was then attacked by the creature, and has not been seen since.
Ben 10: Ultimate Alien
- The Creature from Beyond (first appearance; death)
- Sir Reginald resembles actor David Niven, he also resembles Sir Oswald Mosley of the BU, a British fascist political party led by Mosley during the 1930s until the 1940s. However, after being taken over by the Lucubra, his appearance changed.
- Winston is Sir Reginald's squire.