Arthur Ollis (TV: The Three Doctors) or Arthur Hollis (PROSE: The Three Doctors) was the game warden of Minsbridge Wild Life Sanctuary and the husband of Mrs. Ollis.
Biography
Mr. Ollis was asked by Dr Tyler to retrieve his cosmic ray monitoring device, which had landed in the sanctuary, but was accidentally transported to Omega's anti-matter universe, where he met the Second and Third Doctors, Jo Grant, Brigadier Lethbridge-Stewart, Sergeant Benton and Tyler.
After taking refuge in the TARDIS, Omega allowed him to return to Earth via his transporter. After the crisis ended, he was safely returned to Earth, where he attempted to avoid an explanation of his whereabouts to his wife by saying she wouldn't believe him if he told her, and then asked if supper was ready. (TV: The Three Doctors)