Arlen Crane is the main villain of the second live action Guyver film, Guyver 2: Dark Hero.
HistoryHe was the liason between the Tempus Corporation and an archeological excavation team the corporation was funding. In truth he was a Chronos agent sent to keep an eye on the dig team because what they were excavating proved to be an intact Creator ship containing a Guyver Unit that's later shown to be damaged. He appealed to Sean to join them, saying that the secrets in the ship could make both of them normal again. This was most likely a ruse, though, as Sean immediately refuse due to his past history with Chronos.
After being threatened by his boss for his team's repeated failures to get rid of the Guyver, Crane merged with the damaged Guyver Unit. He fought Sean as a hybrid Guyver/Zoanoid, referred to as the Guyver Zoanoid, and was dominating the fight with his combined powers until his damaged Control Medal started to malfunction. With his Guyver suit starting to eat him alive, Crane was occupied long enough for Sean to destroy him with the Mega Smasher rather than let him suffer a very painful death.
Arlen Crane is an arrogant man whom had no compunction in sacrificing his pawns after they outlived their usefulness. He also very manipulative so his pawn won't know what would come to them. The only one whom eventually see his true colors were Sean, whom have history with previous members of LA branch of Chronos. His arrogance and hubris serves as his downfall, as when donning a damaged Guyver unit, he ignored Sean's warning about the flawed Guyver, which contribute his demise.
While his damaged Control Medal is an element obviously borrowed from Lisker (who ironically appeared in a completely different form in the first movie), his Guyver armor is clearly based on Guyver III's. Also, due to Crane's gruesome demise that prompt Sean (Sho's counterpart) used Mega Smasher to put him out of his misery, his arrogance, and status in Chronos hierarchy made him the true counterpart of Lisker's original incarnation in Anime, Manga, and OVA series.