Apologies for more links but here are a few I thought you might like:

Here's one recommending the name of Theophilus:
http://www.babywatch.to/namesuk/t/theophilus.html

Here is a trio of biblical/religious Theophiluses:
Theophilus - Patriarch of Alexandria (385-412)
http://www.newadvent.org/cathen/14625b.htm
St. Theophilus the Penitent, d. 6th century, Feastday: February 4
http://saints.catholic.org/saints/theophilusthepenitent.html
Theophilus - Bishop of Antioch
http://www.newadvent.org/cathen/14625a.htm

An Emperor
Theophilus (E Roman Emp.)Death: 842
According to "History of the Byzantine Empire", by A.A. Vasilev, the main theme of Theophilus' reign (829-842) was the life and death struggle with the Arabs. This caused Theophilus to seek assistance from the Western European rulers. He recieved moral support, but very little
substantial assistance
http://www.gendex.com/users/jast/D0005/G0000096.html

Here's a couple of Civil War generals:
A confederate - Theophilus Hunter Holmes
Born: November 13 1804, Sampson Cty NC
http://www.trader-skis.com/generals/confederate_generals/h/holmes_t_f.htm
and to even things up for the other side:
Theophilus Toulmin Garrard
Born: June 7 1812, nr Manchester KY
http://www.trader-skis.com/generals/union_generals/g/garrard_t_t.htm

And .. best of all - a place on the moon -
http://www.geocities.com/CapeCanaveral/Launchpad/7021/theopilus.html