Emerging from Odense, Denmark, Grunwald honed his craft at the local theatrical school before completing his studies at the Royal Danish Theatre's academy in the early 1960s. He entered film with a supporting part in the 1961 production En blandt mange and later became widely recognized for portraying Benny Frandsen, the affable accomplice in the beloved Olsen Gang series, alongside Ove Sprogøe an…
