Terry Lee Repp, 45, a resident of Iowa, was taken in custody at Tampa Bay Comic Con on July 29 on suspicion of following the "Underworld" actress, who was supposed to be present at the event, reported TMZ.
The accused was booked on Saturday morning on a USD 5,000 bond after he turned up at the Convention Centre, a few hours before Beckinsale, 44, took to the stage for a Q&A session.
The actress headed to the police station to file a report against Repp, due to which she postponed the session for several hours. But she made her scheduled appearance later.
"Repp made physical contact with the victim during an event in Salt Lake City, Utah in 2016. During this encounter, Repp touched the victim's back and made a statement to the victim in reference to stabbing her.
"(He) appears to have an irrational obsession with (Beckinsale) and has travelled across the country in an effort to harass her. Repp's actions caused the victim substantial emotional distress and caused her to fear for her safety. Repp has been charged with stalking and was booked into Orient Road Jail," the statement read.