[3] In 2010, he performed D. C. Moore's monologue Honest at the Edinburgh Fringe Festival at Milne's Bar as part of the Assembly programme.
[4] In 2011, he appeared opposite Rhys Ifans and Vanessa Redgrave in the feature film Anonymous, which contests the authorship of Shakespeare's plays, as Christopher Marlowe.
[5] In 2012, he joined the main cast of the ITV period drama series Mr Selfridge as Victor Colleano, assistant manager of the department store's restaurant.
[3] Gravelle filmed Mr Selfridge between April and October,[6] and the series débuted in the United Kingdom in January 2013.
[8] Co-star Morfydd Clark mentioned enjoying speaking in Welsh on-set with Gravelle and Owain Arthur.