United Kingdom, Feb. 24 -- Harrison Ford is "always so lovely" to his '1923' co-stars.

The Hollywood icon stars in the Western drama series alongside the likes of Dame Helen Mirren, Brandon Sklenar, Julia Schlaepfer, Jerome Flynn, and Darren Mann, and Helen has lavished praise on her 82-year-old co-star.

Helen, 79 - who plays Harrison's on-screen love interest - told PEOPLE: "He's always so lovely to all the other actors. And so we do all sit in the freezing cold on set, on funny, funky, little uncomfortable chairs, and the other guys just gather around Harrison because they just want to be in his company, I think. And I tag along."

The London-born actress admitted that her male co-stars "absolutely love him".

Helen explained: "Harris...