He would later rejoin the Hitchhiker's Guide by lending his voice to the "Ecological Man" and the "Zirzla Leader" in the Quandary Phase of the Radio Series, while Geoffrey McGivern, who had originally played the character on radio, returned to the role of Ford.
He also received critical acclaim for his portrayal of Ariel in the 1980 BBC version of "The Tempest."
As Ford Prefect
He also appeared as both Ford and himself in the Making of The Hitchhiker's Guide to the Galaxy documentary.
As Ecological Man and Zirzla Leader