Rolf Steiner, born on January 3, 1933, is a German retired mercenary with a remarkable military career. He initially served as a French Foreign Legion paratrooper and participated in combat operations in Vietnam, Egypt, and Algeria. Steiner's military leadership led him to command the 4th Commando Brigade in the Biafran Army during the Nigerian Civil War and later fight alongside the Anyanya rebels in southern Sudan.Steiner's early life was shaped by the tumultuous events of Nazi Germany. He claimed to have been a member of the Nazi Deutsches Jungvolk and expressed a desire to join the Hitler Youth, although the war ended before he could do so. However, in a 2013 interview, he referred to his memoirs as a "fable." Steiner also recounted a challenging childhood, including the suicide of his father and his upbringing in a nunnery in Lower Bavaria.At the age of 16, Steiner joined the French Foreign Legion, driven by his passion for military life. He emphasized the Legion's role in protecting the weak and defending just causes, although this sentiment was met with skepticism by some. His service in Vietnam included combat experiences and a claimed injury resulting in the loss of one lung, although this account has been questioned.Steiner's life and military exploits are filled with controversial and disputed accounts, contributing to a complex and intriguing narrative that has garnered significant attention and scrutiny.

Rolf Sørensen, born on April 20, 1965, is a former Danish professional road bicycle racer known for his impressive cycling career and his current roles as a cycling commentator and agent. Originating from Helsinge, Denmark, Sørensen relocated to Italy at the age of 17 and has resided there ever since. His blonde hair earned him the nickname Il Biondo. Throughout his career, Sørensen achieved remarkable victories, including winning classic one-day races such as the Tour of Flanders, Liège–Bastogne–Liège, Paris–Brussels, Paris–Tours, and Milano–Torino. He also secured wins in smaller races like the Coppa Bernocchi and the Rund um den Henninger Turm. Sørensen's accomplishments extend to leading the UCI Road World Cup and claiming individual stage wins in prestigious events like the Tour de France and the Giro d'Italia. Notably, he clinched the silver medal at the 1996 Olympics. Despite his initial denial, Sørensen later admitted to using EPO and Cortisone. His illustrious career and contributions to the cycling world have solidified his legacy as a prominent figure in the sport.

Rolf Köhler (24 May 1951 – 16 September 2007) was a prominent German singer and record producer. He gained commercial success under the pseudonym Marc de Ville in the late 1970s, recording several singles like "Annie (I Don't Wanna Talk About the Weather)" and "California". Köhler collaborated with various musicians, including Marius Müller-Westernhagen and heavy metal band Saxon. He co-owned Karo Music Studios and produced music with other notable producers. In the mid-1980s, he co-produced synth-pop-style singles with artists like Stag and L'Affair. Köhler's collaboration with Dieter Bohlen spanned nearly 16 years, leading to success with the Blue System project and later joining Systems in Blue. Systems in Blue, an europop/synth-pop group, released four albums and received positive reception for their musical construction and lyrics. Unfortunately, Köhler passed away at the age of 56 from an apoplectic attack in 2007. His contributions to the music industry continue to be celebrated and remembered.

Rolf Singer (June 23, 1906 – January 18, 1994) was a renowned German mycologist and taxonomist, primarily known for his work on gilled mushrooms (agarics). His notable contribution includes the book "The Agaricales in Modern Taxonomy". Singer's career was marked by his resilience and pursuit of mycology in various countries during the tumultuous Nazi period. He fled to the Soviet Union, Argentina, and finally settled in the United States, where he served as a mycologist at the Field Museum in Chicago. Singer's academic journey began with a Ph.D. from the University of Vienna in 1931, and he went on to work in Munich before leaving Germany due to political turmoil. Throughout his career, he held prestigious positions at institutions such as Harvard University, Universidad Nacional de Tucuman in Argentina, and the University of Illinois at Chicago. Singer's expertise is evident in his formal description of 2260 new fungal species and over 400 publications. His contributions were further recognized through the naming of several taxa of fungi in his honor. Singer's impactful legacy continues to inspire and shape the field of mycology.

Rolf Jacobsen (8 March 1907 – 20 February 1994) was a prominent Norwegian writer and poet, widely recognized as one of Scandinavia’s most distinguished poets. He is often regarded as the first modernist writer in Norway. Jacobsen's literary career spanned over fifty years, during which he made significant contributions to the poetic modernism movement in Norway. His work, characterized by the balance between nature and technology, earned him the moniker "the Green Poet" in Norwegian literature. Jacobsen's influential poetry collections, including "Jord og jern" (1933), "Vrimmel" (1935), and "Fjerntog" (1951), have been translated into over twenty languages. He delved into themes such as the relationship between machines and human civilization, the impact of modern inventions, and his troubled compassion for the world around him. Jacobsen's personal life, including his marriage to Petra Tendø and their two sons, also played a significant role in shaping his poetry. His lasting legacy continues to inspire and resonate with readers worldwide.