ET Canada‘s blonde bombshell Cheryl Hickey steps into a new role in Wednesday’s episode of Bomb Girls in a very special cameo appearance.

Cheryl takes us behind-the-scenes in her trailer on set of the show as she prepares for her onscreen debut in the much-loved Global show. She tells us how it really is to work on set for hours at a time and have your makeup done several hours before shooting begins. Watch her Vlog, shot on her iPad, below! And send us your questions for Cheryl about her experience in the comments below or on Twitter!

Tonight’s episode, entitled The Harder We Fight, is explosive as a group of Maritimers arrive at the plant and one of the girls, Reggie, makes Betty suspicious.

Bomb Girls has been nominated for seven Canadian Screen Awards, including Best Dramatic Series, Best Direction in a Dramatic Series, Best Costume Design and Best Performance by an Actress in a Continuing Leading Dramatic Role for Meg Tilly.