His career was marked with recurring roles in several large productions, particularly with the British public broadcast network ITV.
His father lived with actor Sir Dirk Bogarde at Beel House, a Grade II* listed building in Amersham.
In the intervening years, Forwood played Rex Gascoigne in Daniel Deronda (1970), Julian Webb in The Main Chance (1970), P.C.
In 1973, Forwood was cast as Doctor Park in ITV Granada's courtroom drama series Crown Court along with his grandfather, actor Mervyn Johns, who played Arthur Charles Parfitt and Edward Lumsden.
By the mid-1970s, Forwood was already an established character actor, with parts in such films as Where Adam Stood (1976) as Mr. Brackley, Birth of the Beatles (1979) as Alden, and Blade on the Feather (1980) as the Doctor.
His television credits of this era include playing Everett Wharton on the 1974 BBC television adaptation of Anthony Trollope's eponymous novels The Pallisers, Jonathan Bridges on the nonlinear narrative series The ITV Play, and Doctor Crampton on the final season of ITV's drama series Armchair Thriller in 1980.
In 1989, Forwood played Derek Preston in the episode Life and Death of Geoff McQueen's police procedural television series The Bill on ITV.