It looks like Transformers 5 also found a woman for Cade in the form of Laura Haddock (Da Vinci's Demons, Guardians of the Galaxy as Peter Quill's mom). The actress announced the news on her twitter account with a video (maybe below as twitter's embed code only sometimes works). Also if in the Detroit area, the movie is also looking for extras as TF5 will be spending the next 8 weeks in the city. Full details can be found with Fox 2's interview with the casting director here.
VERY EXCITED to tell you guys..... #transformers pic.twitter.com/0cLjjkJbtZ
— laura haddock (@laurajhaddock) June 20, 2016