I liked Kusakari's performance as Masayuki a lot he was also good in Sanada Taiheiki as Yukimura.
Takeuchi Yuko was good as Chacha as well as Kohinata as Hideyoshi.
Kuroki Haru and Matsuoka Mayu did a good job.
Mayu however had the disadvantage that they downplayed her character (Otani Yoshitsugu's daughter) who was very important for Nobushige's life (she tied him to the Western Army) and was very kind/devoted during Kudoyama and Osaka and who developed the Sanadahimo. She also had a tragic life with the death of her father Yoshitsugu, her husband Nobushige and her beloved son Daisuke
Sakai Masato did not convince me as Nobushige/Yukimura.
Nagasawa Masami in my opinion got way too much screentime and was pushed into scenes where she didn't belong and kept around too long. She should have been written out way before Sekigahara.