His father was a Judge on the Court of Queen’s Bench of Alberta and his mother was chair of Grant MacEwan’s social work program for 30 years.
He was most recently employed as a tenured instructor at the University of Calgary in the Faculty of Social Work at the Edmonton division before being elected in May 2015.
The day he was elected he stated that he was "very privileged" to serve in what he calls "a fundamentally important role in the province" referring to the portfolio he would take on as Minister of Indigenous Relations.
Feehan was re-elected in the 2019 Alberta general election and was appointed to be the Official Opposition's Indigenous relations critic.
[13] In February 2024, Feehan attempted to run for the BC NDP nomination in Powell River-Sunshine Coast, having recently moved to the riding.