Ivan Marevich (also credited as Ivan Marević / Ivo Marevic; birth date and place not publicly confirmed) is a Croatian actor, director, and writer based in London, 1.80 m tall. He is best known as Grentz in Hannibal Rising (2007), Josip in The Heir Apparent: Largo Winch (2008), and Viktor Bout in the documentary series Spy Wars (2019). Other notable credits include a voice role in Casino Royale (2006), Nicolay Alexayav in Ted Lasso (2023), and Aleksi in The Grid (2004). On television he had recurring roles on The Bill (2001–2008) and guest appearances on EastEnders (2013) and Rough Diamond (2007). His early career was in Croatian cinema, including Dubrovnik Twilight (1999) and Police 2020 (1997). He has also directed and written, including the short film Trotakt projekt: Repriza izgubljene price (2012).