His passion for the stage ignited during World War II when entertaining troops in the RAF, in which he served with Bomber Command from 1943 until 1947.

At the British premiere in August 1955 he created the role of Vladimir in Waiting For Godot, at the Arts Theatre in Westminster.

[3] Daneman's television credits include: The Adventures of Robin Hood, The Four Just Men, Persuasion, The Edgar Wallace Mystery Theatre 1961 playing the character Rex Lander, Danger Man, Out of the Unknown, The Saint, Spy Trap, Blake's 7, The Professionals and Rumpole of the Bailey.

Daneman played the husband of Wendy Craig in the original series of the popular BBC sitcom Not in Front of the Children before being replaced by Ronald Hines.

In 1995 Daneman published If I Only Had Wings, a novel inspired by his experiences in the Royal Air Force during World War II.