Molde FK — Forren is best known for his time at Molde FK. He came through Molde's youth system and made his senior breakthrough there. He played a key role in Molde's back line during multiple title-winning seasons under manager Ole Gunnar Solskjær, helping the club win the Tippeligaen (Norwegian top division) in 2011 and 2012 and the Norwegian Cup in 2013.
Southampton (loan) — Forren had a brief loan spell at Southampton in England in 2013, though he made no competitive first-team appearances due to work-permit/registration issues and returned to Norway.
Brighton & Hove Albion — Forren signed for Brighton in 2014 but again struggled for regular playing time and returned to Molde on loan before later rejoining Molde permanently.
Other clubs — Later in his career he had spells with clubs such as SK Brann and an eventual return to Molde; he also played for lower-tier clubs toward the end of his playing career.
International career
Forren represented Norway at youth levels and earned caps for the Norway senior national team. He was part of the Norway setup primarily during the 2010s, typically competing for a centre-back spot.
Playing style
Forren is a tall, physically strong central defender known for aerial ability, tackling and defensive positioning. He has also contributed leadership at the back for Molde during their domestic successes.
Notable facts
Key member of Molde FK during their first-ever league title wins under Ole Gunnar Solskjær.
Experienced some transfers abroad (England) but spent the majority and most successful part of his career at Molde.
Sources & updates
Information above is a summary based on publicly available records through the mid-2020s. For season-by-season statistics (appearances, goals, exact transfer dates) consult up-to-date databases such as Transfermarkt, the Norwegian Football Federation (NFF), or Molde FK's official site.