In the mid 1970's, Rolf suffered from a heart attack and spent 6 weeks in hospital.
Rolf suffered another, this time fatal, heart attack on May 9, 1981, during the 108. performance of the show L/L Wang & Nilsen, which he co-starred alongside Sølvi Wang, at Det Norske Teatret, Oslo.
His breakthrough was in Feldborg's "Operasangeren" in the 1958 revue Så lenge lykken varer.
[2] He played the leading character in the film comedies Operasjon Løvsprett from 1962 and Operasjon Sjøsprøyt from 1964,[2] and played in Stompa forelsker seg from 1965, To på topp from 1965[1] and Reisen til julestjernen from 1976.
He was particularly known for his voice imitations, and recorded several monologues parodying leading Norwegian politicians.