(one's) bark is worse than (one's) bite

One's actions will not be nearly as severe as his or her words imply. Don't worry about John's threats. His bark is worse than his bite.

Name	Pronounced	Usage
Tristan	TRIS-tən (English), trees-TAWN (French)	Welsh, English, French, Arthurian Romance
Osip	O-seep	Russian
Augeas	['ɔ:dʒəs]
Berta	BER-tah (Polish, German, Italian)	Polish, Czech, Hungarian, German, Spanish, Catalan, Italian, Slovene
Dardana	dahr-DAHN-ah	Albanian
Callie	KAL-ee	English