[Sunred]

Fun fact about the summer movie.

Ene-tan the frog Buster Machine was voiced by Nozomi Tsuji, former member of Morning Musume, an all-female idop group that was huge from the late 90s to around the early 2000s until AKB48 was a thing. She went on to marry Taiyo Sugiura, who played Musashi Haruno/Ultraman Cosmos in the 2001 tokusatsu show Ultraman Cosmos and continues to be active on tv and does youtube stuff too these days.
Steamloid was voiced by Taiten Kusunoki who has voiced four versions of Optimus Prime in the Japanese dubs of RID 2001/Car Robot, Armada/Micron Legend, Cybertron/Galaxy Force, and RID 2015/Adventure. He was also Jazz in the first Michael Bay Transformers movie.