|Date of birth||15 August 1994|
|Place of birth||Kumasi, Ghana|
|Height||1.74 m (5 ft 8 1⁄2 in)|
(on loan from Čukarički)
|2017–||→ Inter Zaprešić (loan)||1||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 30 September 2017.
‡ National team caps and goals correct as of 25 August 2013
Born in Kumasi, he played in Ghana with Fetteh Feyenoord academy before being signed by Asante Kotoko SC in 2010. He debuted for Kotoko in the 2010–11 Ghana Premier League having made 4 appearances in the league that season under the coach Bogdan Korak.
Regan moved to Serbia where he spent one year attending high school in the city of Čačak and training with local teams Borac and Sloboda. Earlier he had also trained with clubs in England and the Netherlands. In summer 2012 he signed with FK Napredak Kruševac who brought him along another Ghanaian, Harif Mohammed, also former Asante Kotoko player. Initially he played with Napredak youth squad, but soon he made his league debut for the senior team by playing against OFK Mladenovac, on August 25, 2012. At the end of the 2012–13 Serbian First League season Napredak finished top, and thus won promotion to the 2013–14 Serbian SuperLiga. In May 2014, Regan went on a trial with Ajax, and Ajax's coach Frank de Boer reportedly wanted to sign him.
- Obeng Regan at Srbijafudbal
- The Ghanaian duo were impressive for Napredak as they recorded a 2-0 win over Jagodina in the season’s opener at Goal.com, 12-8-2013
- I am not discouraged – Obeng Regan at Asante Kotoko official website, 13-7-2011, retrieved 25-8-2013
- Afrikanac gradi put do Barselone preko Kruševca! at alo.rs sport, 9-12-2012, retrieved 25-8-2013 (in Serbian)
- Obeng Regan at FK Napredak Kruševac official website, retrieved 25-8-2013
- Obeng Regan at Soccerway
-  Ghana Soccernet: Transfer Tavern: Ghanian international Obeng Regan impresses Ajax Amsterdam on trials (in English) 29 June 2014
- "Реган представљен на Бановом брду". Sportski žurnal. 17 August 2014. Retrieved 17 August 2014.