Albert van Dalsum followed the 3-year HBS (higher citizen school) in Amsterdam and played on party nights already stage with his classmates, that included the later also become known Cor Ruys and Adolf Bouwmeester. After obtaining his degree he initially went on Office work. During his first job at the "Hollandsche IJzeren Spoorweg-Maatschappij", he took acting classes in his spare time at Jan c. de Vos and joined in 1909 with the theatre company "Stage" under the direction of Willem Royaards.
Valiente was married twice. The first marriage (1910) with Sophia Wilhelmina Jacoba Dara ended in divorce in 1928. Two years later he married Isidora Frederika Mages (actress and dancer, stage name Do Hoogland). From this marriage was born a son.
In addition to acting Van Dalsum also directed some plays. One of the most talked about was the executioner of Pär Lagerkvist, that General was conceived as directed against fascism. After The Telegraph stemmingmakende coverage in a rellerige atmosphere, which was formed on 1 december 1935 the show with smoke and stink bombs was disrupted by a hundred NSBmembers.  he also painted many decors of the plays where he worked.
In that period was Valiente one of the visitors to the salon of the Zwolse lawyer Harro Baldwin and his wife Carina, where he befriended Adriaan Roland Holst, m. Vasalis,J.C. Bloem, Titus Leeser and other artists. In 1939, he played in the film Bailey to the book by M.J. Brusse.
Valmiki In the war refused to become a member of the Kultuurkamer. He and his wife found hiding places in Brabant and Limburg. Nevertheless, he continued as best as the acting went between the sliding doors for living room groups. Directly after the war, he founded with others the Amsterdam-Rotterdam scene. In the 1950s he found next to the stage the time to play in several early television productions.
After his active period at the stage he was more focus on the painting. His work, mostly landscapes and still lifes, ontsteeg the level of the hobbyist. He has exhibited regularly in the years 1965 to 1970 in the Hague,Amstelveen and Amsterdam.
On 25 October 1971 Albert van Dalsum died in his hometown of Eenigenburg. He is buried in Tuitjenhorn, where on 19 March 2008 in museum Historical Dutch a copper bust of one of biggest Dutch stage Giants was unveiled. The bust stands in a small park on about a hundred yards from his grave.
On the occasion of his fiftieth stage anniversary in 1960, the Albert Dalsumringprijs's set. The carrier should itself appoint his successor. The first to the ring after and got it was Paul steenbergen (1963), this was followed by, among others, Ko van Dijk jr. (1972) and Peter oosthoek (1977). There is also a Albert of Dalsumprijs, the price of the Amsterdam Fund for the arts.
- The Tooneel (1909-1914)
- The Koninklijke Vereeniging ', the Nederlandsch Tooneel ' (1914-1917, 1918-1920 and 1930-1932)
- The Large Tooneel (1918-1919)
- The Rotterdam Tooneel conducted by Cor van der Lugt Machete (1920-1921)
- That Haghespelers in the wood
- The United Tooneel led by Eduard Verkade (1921-1929)
- To the East of Arnhem Lower witho Tooneel 1929 to 1930 by himself founded, together with Karel and August Defresne
- Amsterdamsche Tooneel-vereeniging from 1932 to 1938 (as a Director) along with Davis as regular player of the Municipal Theater
- The Dutch Tooneel from 1938 to 1940, with Davis and Van der Lugt
- The theatre group "Studio" of 1940-1942, founded together with Paul Storm
During the German occupation of the Netherlands, he refused to be a member of the Kultuurkamer and returned only in 1945 back to the Amsterdam Stadsschouwburg back with the "Five Tooneelgroep May 1945" then he continued his career with leadership roles and/or at: