Crosland began teaching in San Leandro, CA at Pacific High School, and then taught for four years at Weber State. He spent the rest of his career as a professor at BYU, including a short time at BYU-Hawaii. He taught courses in acting, directing, and vocal technique.
He was a member of the Utah National Guard from 1959 to 1965, and served an LDS Mission in the Northwestern States from 1957 to 1959. He directed the General Church production of Zion in the Salt Lake tabernacle, and directed and acted in Church pageants in Oakland, California. He also directed and acted in the Hill Cumorah Pageant.
As an actor, he provided the voice of Jesus Christ in the Living Scriptures Inc. animated videos. He has also had roles in Brigham City (2001), The Last Resort (1997), Secret of Treasure Mountain (1993), The ButterCream Gang (1992), Money Plays (1997), The Man with Three Wives (1993) and It Nearly Wasn't Christmas (1989). He also made a guest appearance on "MMC" (the new Mickey Mouse Club). He played the role of King Lear on stage multiple times in performances throughout Utah.
Ivan was born August 29, 1936 and he passed away on March 26, 2015 at the age of seventy-eight.