1998 (MCMXCVIII) was a common year that started on a Thursday. In the Gregorian calendar, it was the 1998th year of Anno Domini; the 998th year of the 2nd millennium; the 98th year of the 20th century; and the 9th of the 1990s.

The year 1998 was designated International Year of the Ocean by UNESCO.

Liam John Neeson,OBE (born 7 June 1952) is an Irish actor who has been nominated for an Oscar, a BAFTA and three Golden Globe Awards. He has starred in a number of notable roles including Oskar Schindler in Schindler's List, Michael Collins in Michael Collins, Peyton Westlake in Darkman, Bryan Mills in Taken, Qui-Gon Jinn in Star Wars (the film Star Wars Episode I: The Phantom Menace and episodes of Star Wars: The Clone Wars), Alfred Kinsey in Kinsey, Ra's al Ghul in Batman Begins, and the voice of Aslan in The Chronicles of Narnia film series.

He starred in other notable films such as Excalibur, The Dead Pool, Nell, Rob Roy, Les Misérables, The Haunting, Love Actually, Kingdom of Heaven, Taken, Clash of the Titans, The A-Team, Unknown and The Grey, as well as smaller arthouse films (e.g. Deception, Breakfast on Pluto, Chloe). He was ranked at number 69 on Empire magazine's 100 greatest movie stars of all time in 1997.

He was born in Ballymena, County Antrim and educated at St Patrick's College (now St Patrick's, Dundonald), Ballymena Technical College and Queen's University Belfast. He moved to Dublin after university to further his acting career, joining the renowned Abbey Theatre. In the early 1990s, he moved again to the United States, where the wide acclaim for his performance in Schindler's List led to more high-profile work. He is widowed and lives in New York with his two sons.

Steven Frederic Seagal (born April 10, 1952) is an American action film star, producer, writer, martial artist, guitarist and reserve deputy sheriff. A 7th-dan black belt in Aikido, Seagal began his adult life as an Aikido instructor in Japan. He became the first foreigner to operate an Aikido dojo in Japan.

He later moved to the Los Angeles, California, area where he made his film debut in 1988 in Above the Law. By 1991, he had starred in three successful films, and would go on to achieve greater fame in Under Siege (1992), where he played Navy SEALs counter-terrorist expert Casey Ryback. However both On Deadly Ground (1994, which he directed) and Under Siege 2: Dark Territory (1995) did poorly in theaters. During the later half of the 90s, he starred in three more theatrical films and a direct-to-video The Patriot. Aside from Exit Wounds (2001) and Half Past Dead (2002), his career shifted almost entirely to direct-to-video films (often low budget productions and shot in Europe or Asia). Between 1998 to 2009, he appeared in a total of 22 of these. At the age of 59, he returned to the big screen as Torrez in the 2010 film Machete. As of 2011, he's currently busy with the third season of his reality show Steven Seagal: Lawman.