Hoppit

Hoppit was a guard at a television studio that Monica, Buttons, and Cuthbert has several encounters with, as they enjoyed meeting their favorite television stars.

Biography
Sometime in the 1960s, the trio visited the studio in an attempt to get the First Doctor's autograph after seeing him on TV. Hoppit chased them again, leading them to hide in a Police box. The group then discovered that this was actually the Doctor's TARDIS, which took them back to the Stone Age. While there, they tried to explore a cave, only to discover a Stone-Age Hoppit, who chased them back to the TARDIS.

Returning the TARDIS to the 20th century, the group again were chased by the modern Hoppit, with Monica noting "wherever you go - there will always be a Hoppit!" (COMIC: TV Terrors)