表演
skip homeier/bill reynolds (3 episodes, 1955-1956)
sydney mason/dr. steve dorian (2 episodes, 1956)
戴安娜·道格拉斯/elaine conover (2 episodes, 1956)
贝弗利·加兰/katherine kerston (2 episodes, 1955-1956)
toni carroll/brunette nurse (2 episodes, 1955-1956)
mack williams/dr. johnston (3 episodes, 1956)
比尔·威廉姆斯/bill twining (5 episodes, 1955-1957)
robert weston/doctor (2 episodes, 1956)
jonathan hale/dr. milton (2 episodes, 1955)
william henry/dean collins (2 episodes, 1956)
马歇尔·汤普森/dr. albert neville (7 episodes, 1955-1956)
john abbott/john bowers (2 episodes, 1955-1956)
rachel ames/amy kern (6 episodes, 1955-1957)
jean byron/ada march (4 episodes, 1955-1956)
peter hansen/dr. dan scott (6 episodes, 1955-1957)
tom mckee/bill - doctor with package (4 episodes, 1955-1956)
truman bradley/narrator (78 episodes, 1955-1957)
john mitchum/detective sergeant (4 episodes, 1955-1956)
charles wagenheim/ed gorman (2 episodes, 1955-1956)
robert sherman/dr. ryner (2 episodes, 1956)
jim sheldon/radioman (2 episodes, 1956)
布鲁斯·本内特/dr. hugh bentley (5 episodes, 1955-1957)
扎查瑞·斯考特/dr. erwin bach (2 episodes, 1955)
ray collins/dr. milton otis (3 episodes, 1955-1956)
christine larsen/nina keller (2 episodes, 1955)
walter kingsford/dr. cole (6 episodes, 1955-1957)
cyril delevanti/dr. kenneth white (4 episodes, 1955-1957)
john archer/mike redding (2 episodes, 1955-1956)
deforest kelley/captain hall, m.d. (3 episodes, 1955-1956)
robert griffin/ralph scott (2 episodes, 1955-1956)
otto kruger/dr. emmanuel hall (2 episodes, 1955)
donald curtis/dr. fred garner (4 episodes, 1955-1956)
peter davis/duncan (2 episodes, 1955-1956)
charles maxwell/agent john randall (5 episodes, 1955-1957)
michael garth/charles irwin (4 episodes, 1955-1956)
john bryant/lieutenant (2 episodes, 1955)
dane clark/dr. ken donaldson (2 episodes, 1955)
susan cummings/ellen barton (2 episodes, 1956)
hank patterson/george (4 episodes, 1955-1957)
埃德蒙·戈温/dr. lorenz (2 episodes, 1955)
迪克·弗南/dr. don stewart (4 episodes, 1956)
doug wilson/doug hinkle (2 episodes, 1956)
barry froner/gene willard (2 episodes, 1955-1956)
tom bernard/green (2 episodes, 1956)
阿瑟·弗兰兹/dr. jeff conover (5 episodes, 1955-1956)
leo needham/bishop (2 episodes, 1956)
david alpert/dr. porter owen (3 episodes, 1955-1956)
george meader/dr. albert finch (2 episodes, 1955)
比尔·厄文/dr. lewis (2 episodes, 1956)
dabbs greer/arthur kern (3 episodes, 1955-1956)
thomas browne henry/dr. haley (3 episodes, 1956)
斯蒂夫·布罗狄/ist lt. david cramer (2 episodes, 1955)
marilyn erskine/linda otis (3 episodes, 1955-1956)
morris ankrum/dr. clausen (4 episodes, 1955-1956)
bruce payne/dr. hunter (3 episodes, 1956-1957)
james seay/james russell (2 episodes, 1955-1957)
kay faylen/alice kinder (2 episodes, 1955-1956)
paul guilfoyle/alien (3 episodes, 1956)
lonnie blackman/joyce mclane (2 episodes, 1956)
吉恩·洛克哈特/dr. richard hewitt (2 episodes, 1956)
robin short/dr. paul kincaid (2 episodes, 1955-1956)
russ conway/charles s. lyons, d.a. (2 episodes, 1955)
william vaughn/barnes (3 episodes, 1956-1957)
kristine miller/alma ford (4 episodes, 1955-1957)
doris dowling/celia jamison (2 episodes, 1955-1956)
frank gerstle/col. davis (2 episodes, 1955-1956)
john doucette/colonel stewart (3 episodes, 1955-1956)
gene roth/george martin (3 episodes, 1956)
whit bissell/dr. maxwell carnaven (3 episodes, 1955-1956)
john stephenson/dr. brewster, institute chief (3 episodes, 1955-1956)
phil arnold/chet arnold (2 episodes, 1955-1956)
paul hahn/johnson (4 episodes, 1955-1956)
沃伦·斯蒂文斯/prof. richard sheldon (2 episodes, 1955)
george eldredge/cdr. stanley, hearing chairman (3 episodes, 1955-1956)
carol thurston/ann brander (2 episodes, 1955)
freddy ridgeway/bobby avitor (3 episodes, 1956-1957)
jan shepard/joan crane (3 episodes, 1955-1957)
james waters/harry - assistant air controller (2 episodes, 1955-1956)
bruce wendell/al mitchell (3 episodes, 1956)
arthur marshall/frank, biophysicist (3 episodes, 1956-1957)
michael winkelman/kenny guild (2 episodes, 1955)
paul birch/dr. raymond michaels (3 episodes, 1955-1956)
virginia christine/dr. ballard (2 episodes, 1956)
吉恩·巴瑞/capt. john forester (2 episodes, 1955)
fred coby/capt. landry (2 episodes, 1956)
jason johnson/professor adams (2 episodes, 1956)
larry hudson/dick, police scientist (2 episodes, 1955-1956)
charles cane/sheriff alderson (2 episodes, 1955)
than wyenn/dr. herbert (2 episodes, 1956)
harlan warde/dr. lindstrom (2 episodes, 1956)
william ching/dr. george stoneham (3 episodes, 1955-1956)
bradford jackson/carl eberhardt (3 episodes, 1955-1956)
lowell gilmore/ballard (2 episodes, 1955-1956)
riza royce/mrs. horton (2 episodes, 1956)
joyce holden/alma stark (2 episodes, 1955-1956)
troy melton/joe, the intern (2 episodes, 1956-1957)
艾伦·德鲁/diane turner (2 episodes, 1955)
弗吉尼亚·布鲁斯/dr. myrna griffin (2 episodes, 1955)
kenneth tobey/frank davis (2 episodes, 1955-1956)
约翰·霍华德/dr. paul novak (2 episodes, 1955)
christopher dark/dr. keith brandon (3 episodes, 1955-1956)
芭芭拉·海尔/nancy stanton (2 episodes, 1955)
michael fox/dr. edwards (7 episodes, 1955-1956)
anthony eustrel/galleon (2 episodes, 1956)
ted de corsia/det. sgt. cox (2 episodes, 1955)
douglas henderson/dr. avery (2 episodes, 1955)
elizabeth slifer/appearance unconfirmed (3 episodes, 1955-1957)
ludwig stössel/dr. richard wissman (2 episodes, 1955-1956)
robert f. simon/police capt. damon (2 episodes, 1955)
george barrows/adam, the watchman (2 episodes, 1956)
露丝·赫希/bernice knight (2 episodes, 1955-1956)
john eldredge/c.b. page (3 episodes, 1956)
文森特·普莱斯/dr. philip redmond (2 episodes, 1956)
