Stephen Frederick Eustace Frost (born 28 December 1955) is an English actor and comedian, best known for his work on Whose Line Is It Anyway?

He joined Banbury School (now Wykham Park Academy) in north Oxfordshire, part of Stanbridge Hall, in September 1967.

He attended the Guildhall School of Music and Drama with Art Malik (and his wife Gina Rowe), Mark Arden and actors Jeremy Gittins and Robert McCulley.

[5] Frost is known for his work in the 1980s with Mark Arden as part of the double act The Oblivion Boys on Saturday Live.

Veterans of the alternative comedy scene, he and Arden appeared in The Young Ones, and later had their own TV series Lazarus and Dingwall on BBC2.

The duo appeared in a series of British TV advertisements ending with the catchphrase "I bet he drinks Carling Black Label".

Frost appeared alongside Tony Hawks and Angus Deayton in the 2012 feature film Playing the Moldovans at Tennis.