Castello was hired as an assistant coach on August 5, 2021 after serving as an assistant coach at Irvine Valley College in 2019-20.
The Hawai'i alum returns for his third season on Ah Mow's staff. Previously, Castello was a volunteer assistant for the 2017-18 squad.Â
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Castello was the starting libero for the Rainbow Warriors volleyball team from 2011-12. He finished his UH career with 404 total digs (1.99/set). As a senior, he averaged 2.28 digs per set which ranked 14th nationally and fourth in the Mountain Pacific Sports Federation. After graduating from Hawai‘i in 2012, Castello went on to play professionally for VK Ostrava (2013-14) and Voleibal Brno (2014-16), the latter of whom he helped win silver at the Czech Cup and silver at the Czech Extraliga.
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Prior to playing at UH, Castello played two seasons at Irvine Valley College and was a member of the 2010 Pacific Coast Conference championship squad. He was named the conference’s player of the year in 2010 after averaging 4.03 digs per set.
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The Honolulu native is a 2007 graduated from Assets High School. Castello starred at Maryknoll School because Assets did not field a volleyball program. He earned second-team all-state and first-team all-league honors as a senior. He also played basketball and baseball in high school.
Castello was named Maryknoll's boys volleyball head coach in 2018.
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