We don't have a biography for профессор Иван Игнатьевич, ментор Ладыгина yet. Hang in there, or go ahead and contribute one.
Ланцет Guest cast, played by Борис Романов Episode 1x02: Серия 02 (Jan 28, 2019) Episode 1x04: Серия 04 (Jan 30, 2019) Episode 1x05: Серия 05 (Jan 31, 2019)