Character: Wing Commander Martin Keller
Actor: Anthony Calf
Episode: Eagle Day

Anthony Calf enjoyed acting the part of a Wing Commander in the RAF.

"I read the script and really liked it. Keller is dangerous in a funny kind of way. He's commanding, yet odd. He's in charge of security at the secret air force base and he refuses to take any chances."

Keller becomes suspicious about Andrew Foyle (Julian Ovenden) when he is stationed at the air base on a top-secret operation. Andrew believes Keller and Group Captain Graeme (Roger Allam) are hiding something about the death of a young radar operator.

Says Anthony: "Keller believes he hasn't done anything wrong by law. He puts everything that has happened in the context of war. For him, it's quite an easy choice, given the circumstances of the time.

"The work of the station is fundamental to changing the path of the war. Keller believes in putting his country before any individual and young Foyle gets in the way. So he has to be dealt with."

Anthony, who is married to the actress Caroline Harker, also appears on ITV1 this autumn in the thriller Sirens, with Daniela Nardini and Greg Wise, and in Jack Rosenthal's new adaptation of Lucky Jim, starring Stephen Tompkinson.

He also starred recently with Sarah Lancashire in the award-winning drama, The Cry, and his other television credits include Lorna Doone, A Touch of Frost, Kavanagh QC, Bramwell, Pride and Prejudice, Diana - Her True Story, Riders and Great Expectations. Film roles include A Woman of the North, Anna Karenina and The Madness of King George.

September 2002; Publicity Release